 135 (one hundred [and] thirty-five) is the natural number following 134 and preceding 136. ==in mathematics== this number in base 10 can be expressed in operations using its own digits in at least two different ways. one is as a sum-product number, 135 = (1 + 3 + 5)(1 \times 3 \times 5) (1 and 144 share this property) and the other is as the sum of consecutive powers of its digits: 135 = 1^1 + 3^2 + 5^3 (175, 518, and 598 also have this property). 135 is a harshad number, and a repdigit in bases 18 and 26. there are a total of 135 primes between 1,000 and 2,000. 135 = 11 n^2 + 11 n + 3 for n = 3. this polynomial plays an essential role in apÃ©ry's proof that \zeta(2) is irrational. ==in the military== * kc-135 stratotanker is a united states air force united states aerial refueling tanker aircraft in service since 1957 * oc-135b open skies united states air force observation aircraft supports the flies unarmed observation flights over nations of the treaty on open skies * united states air force c-135 derived from the boeing 707 jetliner * usns mission solano (ao-135) was a during world war ii mission buenaventura class fleet oilers during world war ii * uss bosque (apa-135) was a united states navy haskell-class attack transport during world war ii * uss flaherty (de-135) was a united states navy edsall-class destroyer escort during world war ii * uss general w. m. black (ap-135) was a united states navy  during world war ii * uss los angeles (ca-135) was a baltimore class cruiser during world war ii * uss merganser (am-135) was a united states navy minesweeper during world war ii * uss s-30 (ss-135) was an s-class submarine of the united states navy during world war ii * uss tillman (dd-135) was a united states navy wickes class destroyer * uss venus (ak-135) was a united states navy crater-class cargo ship during world war ii * uss weiss (apd-135) was a united states navy crosley class high-speed transport ship during the battle of guadalcanal * electronic attack squadron 135 (vaq-135) is a united states navy electronic attack squadron stationed at naval air station whidbey island, in oak harbor, washington ==in transportation== * london buses route 135 is a transport for london contracted bus route in london * 135th street station on the ind eighth avenue line of the [[new york cit
Integers