157949379 has 32 divisors (see below), whose sum is σ = 269181440. Its totient is φ = 89665056.

The previous prime is 157949377. The next prime is 157949383. The reversal of 157949379 is 973949751.

It is a happy number.

157949379 is a `hidden beast` number, since 15 + 79 + 493 + 79 = 666.

157949379 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 157949379 - 2¹ = 157949377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157949377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27012 + ... + 32334.

It is an arithmetic number, because the mean of its divisors is an integer number (8411920).

Almost surely, 2^157949379 is an apocalyptic number.

157949379 is a deficient number, since it is larger than the sum of its proper divisors (111232061).

157949379 is a wasteful number, since it uses less digits than its factorization.

157949379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496 (or 5490 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 157949379 is about 12567.7913334046. The cubic root of 157949379 is about 540.5542765538.

The spelling of 157949379 in words is "one hundred fifty-seven million, nine hundred forty-nine thousand, three hundred seventy-nine".