256283047 has 2 divisors, whose sum is σ = 256283048. Its totient is φ = 256283046.

The previous prime is 256283033. The next prime is 256283051. The reversal of 256283047 is 740382652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256283047 - 2⁷ = 256282919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256282997 and 256283015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256283017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128141523 + 128141524.

It is an arithmetic number, because the mean of its divisors is an integer number (128141524).

Almost surely, 2^256283047 is an apocalyptic number.

256283047 is a deficient number, since it is larger than the sum of its proper divisors (1).

256283047 is an equidigital number, since it uses as much as digits as its factorization.

256283047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 256283047 is about 16008.8427751665. The cubic root of 256283047 is about 635.1943497529.

The spelling of 256283047 in words is "two hundred fifty-six million, two hundred eighty-three thousand, forty-seven".