31514864 has 20 divisors (see below), whose sum is σ = 61336104. Its totient is φ = 15686208.

The previous prime is 31514849. The next prime is 31514869. The reversal of 31514864 is 46841513.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 31514864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31514869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 707 + ... + 7970.

Almost surely, 2^31514864 is an apocalyptic number.

It is an amenable number.

31514864 is a deficient number, since it is larger than the sum of its proper divisors (29821240).

31514864 is a wasteful number, since it uses less digits than its factorization.

31514864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912 (or 8906 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 31514864 is about 5613.8101143519. The cubic root of 31514864 is about 315.8676473989.

The spelling of 31514864 in words is "thirty-one million, five hundred fourteen thousand, eight hundred sixty-four".