157818632 has 16 divisors (see below), whose sum is σ = 296696400. Its totient is φ = 78699600.

The previous prime is 157818611. The next prime is 157818637. The reversal of 157818632 is 236818751.

It is a self number, because there is not a number n which added to its sum of digits gives 157818632.

It is not an unprimeable number, because it can be changed into a prime (157818637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22994 + ... + 29057.

It is an arithmetic number, because the mean of its divisors is an integer number (18543525).

Almost surely, 2^157818632 is an apocalyptic number.

It is an amenable number.

157818632 is a deficient number, since it is larger than the sum of its proper divisors (138877768).

157818632 is a wasteful number, since it uses less digits than its factorization.

157818632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52436 (or 52432 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 157818632 is about 12562.5885867523. The cubic root of 157818632 is about 540.4050824244.

The spelling of 157818632 in words is "one hundred fifty-seven million, eight hundred eighteen thousand, six hundred thirty-two".