256612156 has 6 divisors (see below), whose sum is σ = 449071280. Its totient is φ = 128306076.

The previous prime is 256612117. The next prime is 256612189. The reversal of 256612156 is 651216652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32076516 + ... + 32076523.

Almost surely, 2^256612156 is an apocalyptic number.

It is an amenable number.

256612156 is a deficient number, since it is larger than the sum of its proper divisors (192459124).

256612156 is a wasteful number, since it uses less digits than its factorization.

256612156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64153043 (or 64153041 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 256612156 is about 16019.1184526490. The cubic root of 256612156 is about 635.4661309723.

The spelling of 256612156 in words is "two hundred fifty-six million, six hundred twelve thousand, one hundred fifty-six".