157239379 has 6 divisors (see below), whose sum is σ = 172833500. Its totient is φ = 142944780.

The previous prime is 157239373. The next prime is 157239403. The reversal of 157239379 is 973932751.

157239379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157239379 - 2³ = 157239371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157239371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649629 + ... + 649870.

Almost surely, 2^157239379 is an apocalyptic number.

157239379 is a deficient number, since it is larger than the sum of its proper divisors (15594121).

157239379 is a wasteful number, since it uses less digits than its factorization.

157239379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299521 (or 1299510 counting only the distinct ones).

The product of its digits is 357210, while the sum is 46.

The square root of 157239379 is about 12539.5127098305. The cubic root of 157239379 is about 539.7431094063.

The spelling of 157239379 in words is "one hundred fifty-seven million, two hundred thirty-nine thousand, three hundred seventy-nine".