13564513 has 8 divisors (see below), whose sum is σ = 13896000. Its totient is φ = 13236528.

The previous prime is 13564483. The next prime is 13564517. The reversal of 13564513 is 31546531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13564513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13564517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8020 + ... + 9562.

It is an arithmetic number, because the mean of its divisors is an integer number (1737000).

Almost surely, 2^13564513 is an apocalyptic number.

It is an amenable number.

13564513 is a deficient number, since it is larger than the sum of its proper divisors (331487).

13564513 is a wasteful number, since it uses less digits than its factorization.

13564513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751.

The product of its digits is 5400, while the sum is 28.

The square root of 13564513 is about 3683.0032582120. The cubic root of 13564513 is about 238.4888441236.

The spelling of 13564513 in words is "thirteen million, five hundred sixty-four thousand, five hundred thirteen".