256151377 has 2 divisors, whose sum is σ = 256151378. Its totient is φ = 256151376.

The previous prime is 256151351. The next prime is 256151411. The reversal of 256151377 is 773151652.

256151377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180391761 + 75759616 = 13431^2 + 8704^2 .

It is a cyclic number.

It is not a de Polignac number, because 256151377 - 2⁷ = 256151249 is a prime.

It is a super-2 number, since 2×256151377² = 131227055877992258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (256151317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128075688 + 128075689.

It is an arithmetic number, because the mean of its divisors is an integer number (128075689).

Almost surely, 2^256151377 is an apocalyptic number.

It is an amenable number.

256151377 is a deficient number, since it is larger than the sum of its proper divisors (1).

256151377 is an equidigital number, since it uses as much as digits as its factorization.

256151377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 37.

The square root of 256151377 is about 16004.7298321465. The cubic root of 256151377 is about 635.0855502982.

The spelling of 256151377 in words is "two hundred fifty-six million, one hundred fifty-one thousand, three hundred seventy-seven".