256096831 has 8 divisors (see below), whose sum is σ = 258953760. Its totient is φ = 253247232.

The previous prime is 256096829. The next prime is 256096837. The reversal of 256096831 is 138690652.

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 256096831 - 2¹ = 256096829 is a prime.

It is a super-3 number, since 3×256096831³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256096837) 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, 96855 + ... + 99463.

It is an arithmetic number, because the mean of its divisors is an integer number (32369220).

Almost surely, 2^256096831 is an apocalyptic number.

256096831 is a deficient number, since it is larger than the sum of its proper divisors (2856929).

256096831 is a wasteful number, since it uses less digits than its factorization.

256096831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 256096831 is about 16003.0256826639. The cubic root of 256096831 is about 635.0404677953.

The spelling of 256096831 in words is "two hundred fifty-six million, ninety-six thousand, eight hundred thirty-one".