13208564 has 12 divisors (see below), whose sum is σ = 23144100. Its totient is φ = 6595968.

The previous prime is 13208561. The next prime is 13208597. The reversal of 13208564 is 46580231.

It can be written as a sum of positive squares in 2 ways, for example, as 9560464 + 3648100 = 3092^2 + 1910^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13208561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732 + ... + 5820.

It is an arithmetic number, because the mean of its divisors is an integer number (1928675).

Almost surely, 2^13208564 is an apocalyptic number.

It is an amenable number.

13208564 is a deficient number, since it is larger than the sum of its proper divisors (9935536).

13208564 is a wasteful number, since it uses less digits than its factorization.

13208564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162 (or 4160 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 13208564 is about 3634.3588155272. The cubic root of 13208564 is about 236.3842490720.

Adding to 13208564 its reverse (46580231), we get a palindrome (59788795).

The spelling of 13208564 in words is "thirteen million, two hundred eight thousand, five hundred sixty-four".