Not Christian.
Also what ssay afleitch is correct. In fact Mormonism is something as impressive as a large faith, whose founder can proven to be a con-man. That doesn't mean that the faith is necessary wrong (no one says that a con-man can't receive divine inspiration), but I do think it give us not non-Mormons a legitimate reason not to take it or its claims very seriously.
Joseph Smith sexually harassed women. He said, as cult founders often do, that he was commanded by god to essentially take what he pleased. There is account after account after account even from before his 'revelation'. The man was a charlatan and I make no apology in saying that.