256119277 has 2 divisors, whose sum is σ = 256119278. Its totient is φ = 256119276.

The previous prime is 256119257. The next prime is 256119287. The reversal of 256119277 is 772911652.

256119277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242767561 + 13351716 = 15581^2 + 3654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256119277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256119257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128059638 + 128059639.

It is an arithmetic number, because the mean of its divisors is an integer number (128059639).

Almost surely, 2^256119277 is an apocalyptic number.

It is an amenable number.

256119277 is a deficient number, since it is larger than the sum of its proper divisors (1).

256119277 is an equidigital number, since it uses as much as digits as its factorization.

256119277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 256119277 is about 16003.7269721774. The cubic root of 256119277 is about 635.0590202856.

The spelling of 256119277 in words is "two hundred fifty-six million, one hundred nineteen thousand, two hundred seventy-seven".