31163164 has 6 divisors (see below), whose sum is σ = 54535544. Its totient is φ = 15581580.

The previous prime is 31163161. The next prime is 31163177. The reversal of 31163164 is 46136113.

It is a happy number.

It is a super-2 number, since 2×31163164² = 1942285580981792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31163161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3895392 + ... + 3895399.

Almost surely, 2^31163164 is an apocalyptic number.

It is an amenable number.

31163164 is a deficient number, since it is larger than the sum of its proper divisors (23372380).

31163164 is a wasteful number, since it uses less digits than its factorization.

31163164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790795 (or 7790793 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 31163164 is about 5582.3976927482. The cubic root of 31163164 is about 314.6882411434.

Adding to 31163164 its reverse (46136113), we get a palindrome (77299277).

The spelling of 31163164 in words is "thirty-one million, one hundred sixty-three thousand, one hundred sixty-four".