157137540 has 48 divisors (see below), whose sum is σ = 502841472. Its totient is φ = 35917056.

The previous prime is 157137499. The next prime is 157137551. The reversal of 157137540 is 45731751.

157137540 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186649 + ... + 187488.

It is an arithmetic number, because the mean of its divisors is an integer number (10475864).

Almost surely, 2^157137540 is an apocalyptic number.

157137540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157137540 is an abundant number, since it is smaller than the sum of its proper divisors (345703932).

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

157137540 is a wasteful number, since it uses less digits than its factorization.

157137540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374156 (or 374154 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 157137540 is about 12535.4513281333. The cubic root of 157137540 is about 539.6265593624.

The spelling of 157137540 in words is "one hundred fifty-seven million, one hundred thirty-seven thousand, five hundred forty".