31082112 has 48 divisors (see below), whose sum is σ = 89445330. Its totient is φ = 10360320.

The previous prime is 31082101. The next prime is 31082153. The reversal of 31082112 is 21128013.

It can be written as a sum of positive squares in only one way, i.e., 30206016 + 876096 = 5496^2 + 936^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12339 + ... + 14642.

Almost surely, 2^31082112 is an apocalyptic number.

31082112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31082112 is an abundant number, since it is smaller than the sum of its proper divisors (58363218).

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

31082112 is a wasteful number, since it uses less digits than its factorization.

31082112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27001 (or 26986 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 31082112 is about 5575.1333616336. The cubic root of 31082112 is about 314.4151809774.

The spelling of 31082112 in words is "thirty-one million, eighty-two thousand, one hundred twelve".