13065256 has 8 divisors (see below), whose sum is σ = 24497370. Its totient is φ = 6532624.

The previous prime is 13065253. The next prime is 13065263. The reversal of 13065256 is 65256031.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 320356 = 3570^2 + 566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13065251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816571 + ... + 816586.

Almost surely, 2^13065256 is an apocalyptic number.

It is an amenable number.

13065256 is a deficient number, since it is larger than the sum of its proper divisors (11432114).

13065256 is a wasteful number, since it uses less digits than its factorization.

13065256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633163 (or 1633159 counting only the distinct ones).

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

The square root of 13065256 is about 3614.5893266041. The cubic root of 13065256 is about 235.5262448531.

The spelling of 13065256 in words is "thirteen million, sixty-five thousand, two hundred fifty-six".