157117632 has 56 divisors (see below), whose sum is σ = 475097856. Its totient is φ = 44890368.

The previous prime is 157117619. The next prime is 157117643. The reversal of 157117632 is 236711751.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 157117593 and 157117602.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 57108 + ... + 59795.

Almost surely, 2^157117632 is an apocalyptic number.

157117632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157117632 is an abundant number, since it is smaller than the sum of its proper divisors (317980224).

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

157117632 is a wasteful number, since it uses less digits than its factorization.

157117632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116925 (or 116915 counting only the distinct ones).

The product of its digits is 8820, while the sum is 33.

The square root of 157117632 is about 12534.6572350424. The cubic root of 157117632 is about 539.6037696899.

The spelling of 157117632 in words is "one hundred fifty-seven million, one hundred seventeen thousand, six hundred thirty-two".