It is a tau number, because it is divible by the number of its divisors (48).
It is a nialpdrome in base 8.
It is an unprimeable number.
31008 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
231008 is an apocalyptic number.
31008 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
31008 is the 102-nd octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31008 is a wasteful number, since it uses less digits than its factorization.
31008 is an evil number, because the sum of its binary digits is even.
The square root of 31008 is about 176.0908856244. The cubic root of 31008 is about 31.4165085544.
The spelling of 31008 in words is "thirty-one thousand, eight".