13240564 has 6 divisors (see below), whose sum is σ = 23170994. Its totient is φ = 6620280.

The previous prime is 13240553. The next prime is 13240573. The reversal of 13240564 is 46504231.

It can be written as a sum of positive squares in only one way, i.e., 12531600 + 708964 = 3540^2 + 842^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655067 + ... + 1655074.

Almost surely, 2^13240564 is an apocalyptic number.

It is an amenable number.

13240564 is a deficient number, since it is larger than the sum of its proper divisors (9930430).

13240564 is a wasteful number, since it uses less digits than its factorization.

13240564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310145 (or 3310143 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 13240564 is about 3638.7585795158. The cubic root of 13240564 is about 236.5749888471.

Adding to 13240564 its reverse (46504231), we get a palindrome (59744795).

The spelling of 13240564 in words is "thirteen million, two hundred forty thousand, five hundred sixty-four".