256453229 has 2 divisors, whose sum is σ = 256453230. Its totient is φ = 256453228.

The previous prime is 256453201. The next prime is 256453271. The reversal of 256453229 is 922354652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178837129 + 77616100 = 13373^2 + 8810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256453229 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 256453192 and 256453201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256453429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128226614 + 128226615.

It is an arithmetic number, because the mean of its divisors is an integer number (128226615).

Almost surely, 2^256453229 is an apocalyptic number.

It is an amenable number.

256453229 is a deficient number, since it is larger than the sum of its proper divisors (1).

256453229 is an equidigital number, since it uses as much as digits as its factorization.

256453229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 256453229 is about 16014.1571429782. The cubic root of 256453229 is about 635.3349166348.

The spelling of 256453229 in words is "two hundred fifty-six million, four hundred fifty-three thousand, two hundred twenty-nine".