They are not gods and do not have the power of God. Neither are they to be worshiped. We are to worship the Creator, not the creation. Sometimes, fascination about angels borders on worship and we must be cautious of this. Just as we are not to worship our pastors or other spiritual advisors, we are not to worship angels, either.
Angels are immortal.
Angels have already received the promise of eternal life with God. They were created for His service, too but serve Him in heaven while we serve Him on earth for now. Angels serve God in part by dealing with human things. Angels have been messengers for God, they protect and guide us and minister to us. They bring us God s comfort.