256345159 has 8 divisors (see below), whose sum is σ = 310199328. Its totient is φ = 206799360.

The previous prime is 256345157. The next prime is 256345163. The reversal of 256345159 is 951543652.

256345159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256345159 - 2¹ = 256345157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256345151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076962 + ... + 1077199.

It is an arithmetic number, because the mean of its divisors is an integer number (38774916).

Almost surely, 2^256345159 is an apocalyptic number.

256345159 is a deficient number, since it is larger than the sum of its proper divisors (53854169).

256345159 is a wasteful number, since it uses less digits than its factorization.

256345159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154185.

The product of its digits is 162000, while the sum is 40.

The square root of 256345159 is about 16010.7825854953. The cubic root of 256345159 is about 635.2456602149.

The spelling of 256345159 in words is "two hundred fifty-six million, three hundred forty-five thousand, one hundred fifty-nine".