31000096 has 48 divisors (see below), whose sum is σ = 65288160. Its totient is φ = 14446080.

The previous prime is 31000087. The next prime is 31000127. The reversal of 31000096 is 69000013.

It is a super-2 number, since 2×31000096² = 1922011904018432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40356 + ... + 41116.

It is an arithmetic number, because the mean of its divisors is an integer number (1360170).

Almost surely, 2^31000096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31000096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32644080).

31000096 is an abundant number, since it is smaller than the sum of its proper divisors (34288064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31000096 is a wasteful number, since it uses less digits than its factorization.

31000096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 31000096 is about 5567.7729838778. The cubic root of 31000096 is about 314.1383895104.

The spelling of 31000096 in words is "thirty-one million, ninety-six", and thus it is an aban number and an uban number.