12531164 has 12 divisors (see below), whose sum is σ = 21961800. Its totient is φ = 6256368.

The previous prime is 12531163. The next prime is 12531191. The reversal of 12531164 is 46113521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531163) 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, 1427 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (1830150).

Almost surely, 2^12531164 is an apocalyptic number.

It is an amenable number.

12531164 is a deficient number, since it is larger than the sum of its proper divisors (9430636).

12531164 is a wasteful number, since it uses less digits than its factorization.

12531164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612 (or 4610 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 12531164 is about 3539.9384175434. The cubic root of 12531164 is about 232.2721489210.

Adding to 12531164 its reverse (46113521), we get a palindrome (58644685).

The spelling of 12531164 in words is "twelve million, five hundred thirty-one thousand, one hundred sixty-four".