31130694 has 24 divisors (see below), whose sum is σ = 77085840. Its totient is φ = 8894448.

The previous prime is 31130657. The next prime is 31130711. The reversal of 31130694 is 49603113.

It is a congruent number.

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, 123409 + ... + 123660.

It is an arithmetic number, because the mean of its divisors is an integer number (3211910).

Almost surely, 2^31130694 is an apocalyptic number.

31130694 is an abundant number, since it is smaller than the sum of its proper divisors (45955146).

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

31130694 is a wasteful number, since it uses less digits than its factorization.

31130694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247084 (or 247081 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 31130694 is about 5579.4886862507. The cubic root of 31130694 is about 314.5789082351.

The spelling of 31130694 in words is "thirty-one million, one hundred thirty thousand, six hundred ninety-four".