13125664 has 24 divisors (see below), whose sum is σ = 26444880. Its totient is φ = 6409536.

The previous prime is 13125653. The next prime is 13125667. The reversal of 13125664 is 46652131.

It is not an unprimeable number, because it can be changed into a prime (13125667) 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, 3394 + ... + 6145.

It is an arithmetic number, because the mean of its divisors is an integer number (1101870).

Almost surely, 2^13125664 is an apocalyptic number.

It is an amenable number.

13125664 is an abundant number, since it is smaller than the sum of its proper divisors (13319216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13125664 is an equidigital number, since it uses as much as digits as its factorization.

13125664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9592 (or 9584 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 13125664 is about 3622.9358260946. The cubic root of 13125664 is about 235.8886767885. Note that the first 3 decimals are identical.

Adding to 13125664 its reverse (46652131), we get a palindrome (59777795).

The spelling of 13125664 in words is "thirteen million, one hundred twenty-five thousand, six hundred sixty-four".