12521164 has 6 divisors (see below), whose sum is σ = 21912044. Its totient is φ = 6260580.

The previous prime is 12521149. The next prime is 12521189. The reversal of 12521164 is 46112521.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565142 + ... + 1565149.

Almost surely, 2^12521164 is an apocalyptic number.

It is an amenable number.

12521164 is a deficient number, since it is larger than the sum of its proper divisors (9390880).

12521164 is a wasteful number, since it uses less digits than its factorization.

12521164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130295 (or 3130293 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 12521164 is about 3538.5256816929. The cubic root of 12521164 is about 232.2103472769.

Adding to 12521164 its reverse (46112521), we get a palindrome (58633685).

The spelling of 12521164 in words is "twelve million, five hundred twenty-one thousand, one hundred sixty-four".