256122283 has 2 divisors, whose sum is σ = 256122284. Its totient is φ = 256122282.

The previous prime is 256122271. The next prime is 256122311. The reversal of 256122283 is 382221652.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256122283 is a prime.

It is not a weakly prime, because it can be changed into another prime (256122683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128061141 + 128061142.

It is an arithmetic number, because the mean of its divisors is an integer number (128061142).

Almost surely, 2^256122283 is an apocalyptic number.

256122283 is a deficient number, since it is larger than the sum of its proper divisors (1).

256122283 is an equidigital number, since it uses as much as digits as its factorization.

256122283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 256122283 is about 16003.8208875256. The cubic root of 256122283 is about 635.0615047789.

The spelling of 256122283 in words is "two hundred fifty-six million, one hundred twenty-two thousand, two hundred eighty-three".