157243756 has 12 divisors (see below), whose sum is σ = 275357880. Its totient is φ = 78570080.

The previous prime is 157243711. The next prime is 157243781. The reversal of 157243756 is 657342751.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5665 + ... + 18616.

It is an arithmetic number, because the mean of its divisors is an integer number (22946490).

Almost surely, 2^157243756 is an apocalyptic number.

It is an amenable number.

157243756 is a deficient number, since it is larger than the sum of its proper divisors (118114124).

157243756 is a wasteful number, since it uses less digits than its factorization.

157243756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25904 (or 25902 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 157243756 is about 12539.6872369290. The cubic root of 157243756 is about 539.7481175531.

The spelling of 157243756 in words is "one hundred fifty-seven million, two hundred forty-three thousand, seven hundred fifty-six".