256124699 has 2 divisors, whose sum is σ = 256124700. Its totient is φ = 256124698.

The previous prime is 256124689. The next prime is 256124773. The reversal of 256124699 is 996421652.

256124699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256124699 - 2¹² = 256120603 is a prime.

It is a super-2 number, since 2×256124699² = 131199722875681202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (256124629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128062349 + 128062350.

It is an arithmetic number, because the mean of its divisors is an integer number (128062350).

Almost surely, 2^256124699 is an apocalyptic number.

256124699 is a deficient number, since it is larger than the sum of its proper divisors (1).

256124699 is an equidigital number, since it uses as much as digits as its factorization.

256124699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 256124699 is about 16003.8963693221. The cubic root of 256124699 is about 635.0635016165.

The spelling of 256124699 in words is "two hundred fifty-six million, one hundred twenty-four thousand, six hundred ninety-nine".