256100151 has 8 divisors (see below), whose sum is σ = 342169984. Its totient is φ = 170381880.

The previous prime is 256100137. The next prime is 256100161. The reversal of 256100151 is 151001652.

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

It is not a de Polignac number, because 256100151 - 2⁹ = 256099639 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 (256100111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86185 + ... + 89106.

It is an arithmetic number, because the mean of its divisors is an integer number (42771248).

Almost surely, 2^256100151 is an apocalyptic number.

256100151 is a deficient number, since it is larger than the sum of its proper divisors (86069833).

256100151 is a wasteful number, since it uses less digits than its factorization.

256100151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175781.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 256100151 is about 16003.1294127118. The cubic root of 256100151 is about 635.0432119724.

The spelling of 256100151 in words is "two hundred fifty-six million, one hundred thousand, one hundred fifty-one".