31164994 has 16 divisors (see below), whose sum is σ = 53499456. Its totient is φ = 13338000.

The previous prime is 31164967. The next prime is 31165003. The reversal of 31164994 is 49946113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15444 + ... + 17344.

It is an arithmetic number, because the mean of its divisors is an integer number (3343716).

Almost surely, 2^31164994 is an apocalyptic number.

31164994 is a deficient number, since it is larger than the sum of its proper divisors (22334462).

31164994 is a wasteful number, since it uses less digits than its factorization.

31164994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its digits is 23328, while the sum is 37.

The square root of 31164994 is about 5582.5615984062. The cubic root of 31164994 is about 314.6944008539.

It can be divided in two parts, 31 and 164994, that added together give a triangular number (165025 = T₅₇₄).

The spelling of 31164994 in words is "thirty-one million, one hundred sixty-four thousand, nine hundred ninety-four".