How old was Mahalalel when he died?
Mahalalel lived 895 years, from 3609 BC to 2714 BC.
Mahalalel died at 895. The chart places his birth at 3609 BC and his death at 2714 BC, on the Ussher chronology it follows. Fifth generation from Adam. (Gen. 5:12-17)
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A date means more beside its neighbours. The chart puts this answer in place next to everything happening around it — biblical and world history across the same six thousand years.
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Everything on this page has a place on one 45×37″ chart — and once you can see what came before and after it, it stops being a fact and starts being a story you can follow.