12657164 has 24 divisors (see below), whose sum is σ = 23952768. Its totient is φ = 5817600.

The previous prime is 12657131. The next prime is 12657167. The reversal of 12657164 is 46175621.

It is a self number, because there is not a number n which added to its sum of digits gives 12657164.

It is not an unprimeable number, because it can be changed into a prime (12657167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20549 + ... + 21155.

It is an arithmetic number, because the mean of its divisors is an integer number (998032).

Almost surely, 2^12657164 is an apocalyptic number.

It is an amenable number.

12657164 is a deficient number, since it is larger than the sum of its proper divisors (11295604).

12657164 is a wasteful number, since it uses less digits than its factorization.

12657164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1023 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 12657164 is about 3557.6908241161. The cubic root of 12657164 is about 233.0480477088.

It can be divided in two parts, 12657 and 164, that added together give a palindrome (12821).

The spelling of 12657164 in words is "twelve million, six hundred fifty-seven thousand, one hundred sixty-four".