157537992 has 32 divisors (see below), whose sum is σ = 394430400. Its totient is φ = 52434624.

The previous prime is 157537973. The next prime is 157537999. The reversal of 157537992 is 299735751.

157537992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (157537999) 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, 12934 + ... + 21962.

It is an arithmetic number, because the mean of its divisors is an integer number (12325950).

Almost surely, 2^157537992 is an apocalyptic number.

157537992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157537992 is an abundant number, since it is smaller than the sum of its proper divisors (236892408).

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

157537992 is a wasteful number, since it uses less digits than its factorization.

157537992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765 (or 9761 counting only the distinct ones).

The product of its digits is 595350, while the sum is 48.

The square root of 157537992 is about 12551.4139442535. The cubic root of 157537992 is about 540.0845683739.

The spelling of 157537992 in words is "one hundred fifty-seven million, five hundred thirty-seven thousand, nine hundred ninety-two".