A charging member, comprising: a substrate; an elastic layer; and a surface layer, wherein: the surface layer comprises a polymer having a Si-O-Ti bond; and the polymer has a constitutional unit represented by the following general formula and a constitutional unit represented by the following general formula: General formula TiO 4/2 where R 1 and R 2 each independently represent any one of the following general formulae to: where: R 3 to R 7, R 10 to R 14, R 19, R 20, R 25, and R 26 each independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, a hydroxyl group, a carboxyl group, or an amino group; R 8, R 9, R 15 to R 18, R 23, R 24, and R 29 to R 32 each independently represent hydrogen or an alkyl group having 1 to 4 carbon atoms; R 21, R 22, R 27, and R 28 each independently represent hydrogen, an alkoxy group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms; n, m, I, q, s, and t each independently represent an integer of 1 or more and 8 or less; p and r each independently represent an integer of 4 or more and 12 or less; x and y each independently represent 0 or 1; and * and ** represent bonding positions with a silicon atom and an oxygen atom in the general formula, respectively. a substrate; an elastic layer; and a surface layer, wherein: the surface layer comprises a polymer having a Si-O-Ti bond; and the polymer has a constitutional unit represented by the following general formula and a constitutional unit represented by the following general formula: General formula TiO 4/2 where R 1 and R 2 each independently represent any one of the following general formulae to: where: R 3 to R 7, R 10 to R 14, R 19, R 20, R 25, and R 26 each independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, a hydroxyl group, a carboxyl group, or an amino group; R 8, R 9, R 15 to R 18, R 23, R 24, and R 29 to R 32 each independently represent hydrogen or an alkyl group having 1 to 4 carbon atoms; R 21, R 22, R 27, and R 28 each independently represent hydrogen, an alkoxy group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms; n, m, I, q, s, and t each independently represent an integer of 1 or more and 8 or less; p and r each independently represent an integer of 4 or more and 12 or less; x and y each independently represent 0 or 1; and * and ** represent bonding positions with a silicon atom and an oxygen atom in the general formula, respectively. the surface layer comprises a polymer having a Si-O-Ti bond; and the polymer has a constitutional unit represented by the following general formula and a constitutional unit represented by the following general formula: General formula TiO 4/2 where R 1 and R 2 each independently represent any one of the following general formulae to: where: R 3 to R 7, R 10 to R 14, R 19, R 20, R 25, and R 26 each independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, a hydroxyl group, a carboxyl group, or an amino group; R 8, R 9, R 15 to R 18, R 23, R 24, and R 29 to R 32 each independently represent hydrogen or an alkyl group having 1 to 4 carbon atoms; R 21, R 22, R 27, and R 28 each independently represent hydrogen, an alkoxy group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms; n, m, I, q, s, and t each independently represent an integer of 1 or more and 8 or less; p and r each independently represent an integer of 4 or more and 12 or less; x and y each independently represent 0 or 1; and * and ** represent bonding positions with a silicon atom and an oxygen atom in the general formula, respectively. R 3 to R 7, R 10 to R 14, R 19, R 20, R 25, and R 26 each independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, a hydroxyl group, a carboxyl group, or an amino group; R 8, R 9, R 15 to R 18, R 23, R 24, and R 29 to R 32 each independently represent hydrogen or an alkyl group having 1 to 4 carbon atoms; R 21, R 22, R 27, and R 28 each independently represent hydrogen, an alkoxy group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms; n, m, I, q, s, and t each independently represent an integer of 1 or more and 8 or less; p and r each independently represent an integer of 4 or more and 12 or less; x and y each independently represent 0 or 1; and * and ** represent bonding positions with a silicon atom and an oxygen atom in the general formula, respectively.