31316164 has 12 divisors (see below), whose sum is σ = 59785488. Its totient is φ = 14234600.

The previous prime is 31316141. The next prime is 31316167. The reversal of 31316164 is 46161313.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31316167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355822 + ... + 355909.

It is an arithmetic number, because the mean of its divisors is an integer number (4982124).

Almost surely, 2^31316164 is an apocalyptic number.

It is an amenable number.

31316164 is a deficient number, since it is larger than the sum of its proper divisors (28469324).

31316164 is a wasteful number, since it uses less digits than its factorization.

31316164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711746 (or 711744 counting only the distinct ones).

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

The square root of 31316164 is about 5596.0847027185. The cubic root of 31316164 is about 315.2024028822.

Adding to 31316164 its reverse (46161313), we get a palindrome (77477477).

The spelling of 31316164 in words is "thirty-one million, three hundred sixteen thousand, one hundred sixty-four".