31064812 has 12 divisors (see below), whose sum is σ = 56727216. Its totient is φ = 14857040.

The previous prime is 31064809. The next prime is 31064819. The reversal of 31064812 is 21846013.

It is not an unprimeable number, because it can be changed into a prime (31064819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168739 + ... + 168922.

It is an arithmetic number, because the mean of its divisors is an integer number (4727268).

Almost surely, 2^31064812 is an apocalyptic number.

It is an amenable number.

31064812 is a deficient number, since it is larger than the sum of its proper divisors (25662404).

31064812 is a wasteful number, since it uses less digits than its factorization.

31064812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337688 (or 337686 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 31064812 is about 5573.5816132896. The cubic root of 31064812 is about 314.3568366784.

The spelling of 31064812 in words is "thirty-one million, sixty-four thousand, eight hundred twelve".