13256313 has 24 divisors (see below), whose sum is σ = 21231360. Its totient is φ = 7328160.

The previous prime is 13256239. The next prime is 13256333. The reversal of 13256313 is 31365231.

It is a happy number.

13256313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13256313 - 2⁸ = 13256057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13256333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3103 + ... + 6011.

It is an arithmetic number, because the mean of its divisors is an integer number (884640).

Almost surely, 2^13256313 is an apocalyptic number.

It is an amenable number.

13256313 is a deficient number, since it is larger than the sum of its proper divisors (7975047).

13256313 is a wasteful number, since it uses less digits than its factorization.

13256313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957 (or 2950 counting only the distinct ones).

The product of its digits is 1620, while the sum is 24.

The square root of 13256313 is about 3640.9219986152. The cubic root of 13256313 is about 236.6687497888.

The spelling of 13256313 in words is "thirteen million, two hundred fifty-six thousand, three hundred thirteen".