256150831 has 4 divisors (see below), whose sum is σ = 258544872. Its totient is φ = 253756792.

The previous prime is 256150819. The next prime is 256150841. The reversal of 256150831 is 138051652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256150831 - 2⁷ = 256150703 is a prime.

It is a super-2 number, since 2×256150831² = 131226496443981122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256150793 and 256150802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256150841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196860 + ... + 1197073.

It is an arithmetic number, because the mean of its divisors is an integer number (64636218).

Almost surely, 2^256150831 is an apocalyptic number.

256150831 is a deficient number, since it is larger than the sum of its proper divisors (2394041).

256150831 is a wasteful number, since it uses less digits than its factorization.

256150831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394040.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 256150831 is about 16004.7127746798. The cubic root of 256150831 is about 635.0850990586.

The spelling of 256150831 in words is "two hundred fifty-six million, one hundred fifty thousand, eight hundred thirty-one".