31166164 has 12 divisors (see below), whose sum is σ = 54587988. Its totient is φ = 15569600.

The previous prime is 31166159. The next prime is 31166171. The reversal of 31166164 is 46166113.

It can be written as a sum of positive squares in 2 ways, for example, as 18421264 + 12744900 = 4292^2 + 3570^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3294 + ... + 8554.

It is an arithmetic number, because the mean of its divisors is an integer number (4548999).

Almost surely, 2^31166164 is an apocalyptic number.

It is an amenable number.

31166164 is a deficient number, since it is larger than the sum of its proper divisors (23421824).

31166164 is a wasteful number, since it uses less digits than its factorization.

31166164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6746 (or 6744 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 31166164 is about 5582.6663880264. Note that the first 3 decimals coincide. The cubic root of 31166164 is about 314.6983389032.

The spelling of 31166164 in words is "thirty-one million, one hundred sixty-six thousand, one hundred sixty-four".