157247256 has 32 divisors (see below), whose sum is σ = 398507760. Its totient is φ = 51697152.

The previous prime is 157247231. The next prime is 157247257. The reversal of 157247256 is 652742751.

157247256 = T₂₀₃₉ + T₂₀₄₀ + ... + T₂₁₁₁.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157247257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43125 + ... + 46628.

Almost surely, 2^157247256 is an apocalyptic number.

It is an amenable number.

157247256 is an abundant number, since it is smaller than the sum of its proper divisors (241260504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157247256 is a wasteful number, since it uses less digits than its factorization.

157247256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89835 (or 89831 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 157247256 is about 12539.8267930622. The cubic root of 157247256 is about 539.7521221729.

It can be divided in two parts, 1572 and 47256, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 157247256 in words is "one hundred fifty-seven million, two hundred forty-seven thousand, two hundred fifty-six".