What does the name methusaleh mean?

Methuselah is portrayed in The Bible as the grandfather of Noah. His one claim to fame is that he was the Bible's oldest living man. Against this is that the lifespans of all the Bible's early heroes involve patterns with the number 17 - Methuselah became a father at age 187 (11x17 years) and died at 969 (57x17 years), which suggests the influence of numerology rather than nature.