70231256 has 32 divisors (see below), whose sum is σ = 134310000. Its totient is φ = 34421760.

The previous prime is 70231247. The next prime is 70231309. The reversal of 70231256 is 65213207.

70231256 = T₃₃₃ + T₃₃₄ + ... + T₇₇₀.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140495 + ... + 140993.

Almost surely, 2^70231256 is an apocalyptic number.

It is an amenable number.

70231256 is a deficient number, since it is larger than the sum of its proper divisors (64078744).

70231256 is a wasteful number, since it uses less digits than its factorization.

70231256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 70231256 is about 8380.4090592286. The cubic root of 70231256 is about 412.5818749020.

The spelling of 70231256 in words is "seventy million, two hundred thirty-one thousand, two hundred fifty-six".