256100871 has 16 divisors (see below), whose sum is σ = 369059040. Its totient is φ = 157032960.

The previous prime is 256100843. The next prime is 256100879. The reversal of 256100871 is 178001652.

256100871 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 256100871 - 2⁷ = 256100743 is a prime.

It is a super-2 number, since 2×256100871² = 131175312253917282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256100879) 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, 726 + ... + 22643.

It is an arithmetic number, because the mean of its divisors is an integer number (23066190).

Almost surely, 2^256100871 is an apocalyptic number.

256100871 is a deficient number, since it is larger than the sum of its proper divisors (112958169).

256100871 is a wasteful number, since it uses less digits than its factorization.

256100871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23666.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 256100871 is about 16003.1519082961. The cubic root of 256100871 is about 635.0438070921.

The spelling of 256100871 in words is "two hundred fifty-six million, one hundred thousand, eight hundred seventy-one".