157987318 has 12 divisors (see below), whose sum is σ = 250111260. Its totient is φ = 74835756.

The previous prime is 157987303. The next prime is 157987327. The reversal of 157987318 is 813789751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108688 + ... + 110131.

It is an arithmetic number, because the mean of its divisors is an integer number (20842605).

Almost surely, 2^157987318 is an apocalyptic number.

157987318 is a deficient number, since it is larger than the sum of its proper divisors (92123942).

157987318 is a wasteful number, since it uses less digits than its factorization.

157987318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218859 (or 218840 counting only the distinct ones).

The product of its digits is 423360, while the sum is 49.

The square root of 157987318 is about 12569.3006169795. The cubic root of 157987318 is about 540.5975529652.

The spelling of 157987318 in words is "one hundred fifty-seven million, nine hundred eighty-seven thousand, three hundred eighteen".