13572513 has 12 divisors (see below), whose sum is σ = 20237568. Its totient is φ = 8756280.

The previous prime is 13572509. The next prime is 13572527. The reversal of 13572513 is 31527531.

13572513 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13572513 - 2² = 13572509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13572583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24045 + ... + 24602.

It is an arithmetic number, because the mean of its divisors is an integer number (1686464).

Almost surely, 2^13572513 is an apocalyptic number.

It is an amenable number.

13572513 is a deficient number, since it is larger than the sum of its proper divisors (6665055).

13572513 is a wasteful number, since it uses less digits than its factorization.

13572513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48684 (or 48681 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 13572513 is about 3684.0891683020. The cubic root of 13572513 is about 238.5357197664.

The spelling of 13572513 in words is "thirteen million, five hundred seventy-two thousand, five hundred thirteen".