256081327 has 2 divisors, whose sum is σ = 256081328. Its totient is φ = 256081326.

The previous prime is 256081283. The next prime is 256081349. The reversal of 256081327 is 723180652.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256081327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256081292 and 256081301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256081127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128040663 + 128040664.

It is an arithmetic number, because the mean of its divisors is an integer number (128040664).

Almost surely, 2^256081327 is an apocalyptic number.

256081327 is a deficient number, since it is larger than the sum of its proper divisors (1).

256081327 is an equidigital number, since it uses as much as digits as its factorization.

256081327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 256081327 is about 16002.5412669363. The cubic root of 256081327 is about 635.0276525044.

The spelling of 256081327 in words is "two hundred fifty-six million, eighty-one thousand, three hundred twenty-seven".