157489756 has 6 divisors (see below), whose sum is σ = 275607080. Its totient is φ = 78744876.

The previous prime is 157489747. The next prime is 157489757. The reversal of 157489756 is 657984751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157489757) by changing a digit.

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 as a sum of consecutive naturals, namely, 19686216 + ... + 19686223.

Almost surely, 2^157489756 is an apocalyptic number.

It is an amenable number.

157489756 is a deficient number, since it is larger than the sum of its proper divisors (118117324).

157489756 is a wasteful number, since it uses less digits than its factorization.

157489756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39372443 (or 39372441 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 52.

The square root of 157489756 is about 12549.4922606454. The cubic root of 157489756 is about 540.0294405531.

The spelling of 157489756 in words is "one hundred fifty-seven million, four hundred eighty-nine thousand, seven hundred fifty-six".