256354113 has 16 divisors (see below), whose sum is σ = 368968320. Its totient is φ = 157833984.

The previous prime is 256354103. The next prime is 256354117. The reversal of 256354113 is 311453652.

It is not a de Polignac number, because 256354113 - 2¹⁰ = 256353089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256354117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62056 + ... + 66057.

It is an arithmetic number, because the mean of its divisors is an integer number (23060520).

Almost surely, 2^256354113 is an apocalyptic number.

256354113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

256354113 is a deficient number, since it is larger than the sum of its proper divisors (112614207).

256354113 is a wasteful number, since it uses less digits than its factorization.

256354113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128168.

The product of its digits is 10800, while the sum is 30.

The square root of 256354113 is about 16011.0622071117. The cubic root of 256354113 is about 635.2530563931.

The spelling of 256354113 in words is "two hundred fifty-six million, three hundred fifty-four thousand, one hundred thirteen".