31075074 has 24 divisors (see below), whose sum is σ = 67999932. Its totient is φ = 10255200.

The previous prime is 31075063. The next prime is 31075097. The reversal of 31075074 is 47057013.

31075074 = 482² + 483² + ... + 589².

It can be written as a sum of positive squares in 2 ways, for example, as 28037025 + 3038049 = 5295^2 + 1743^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6729 + ... + 10364.

Almost surely, 2^31075074 is an apocalyptic number.

31075074 is an abundant number, since it is smaller than the sum of its proper divisors (36924858).

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

31075074 is a wasteful number, since it uses less digits than its factorization.

31075074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17202 (or 17199 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 31075074 is about 5574.5021302355. The cubic root of 31075074 is about 314.3914479153.

The spelling of 31075074 in words is "thirty-one million, seventy-five thousand, seventy-four".