157839478 has 16 divisors (see below), whose sum is σ = 247620096. Its totient is φ = 75315240.

The previous prime is 157839457. The next prime is 157839499. The reversal of 157839478 is 874938751.

It is an interprime number because it is at equal distance from previous prime (157839457) and next prime (157839499).

It is a congruent number.

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, 17593 + ... + 25003.

It is an arithmetic number, because the mean of its divisors is an integer number (15476256).

Almost surely, 2^157839478 is an apocalyptic number.

157839478 is a deficient number, since it is larger than the sum of its proper divisors (89780618).

157839478 is a wasteful number, since it uses less digits than its factorization.

157839478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7899.

The product of its digits is 1693440, while the sum is 52.

The square root of 157839478 is about 12563.4182450478. The cubic root of 157839478 is about 540.4288751123.

The spelling of 157839478 in words is "one hundred fifty-seven million, eight hundred thirty-nine thousand, four hundred seventy-eight".