157839479 has 16 divisors (see below), whose sum is σ = 191116800. Its totient is φ = 127337184.

The previous prime is 157839457. The next prime is 157839499. The reversal of 157839479 is 974938751.

157839479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 157839479 - 2⁸ = 157839223 is a prime.

It is a super-2 number, since 2×157839479² = 49826602261982882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157839479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157839419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17102 + ... + 24660.

It is an arithmetic number, because the mean of its divisors is an integer number (11944800).

Almost surely, 2^157839479 is an apocalyptic number.

157839479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

157839479 is a deficient number, since it is larger than the sum of its proper divisors (33277321).

157839479 is a wasteful number, since it uses less digits than its factorization.

157839479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7742.

The product of its digits is 1905120, while the sum is 53.

The square root of 157839479 is about 12563.4182848459. The cubic root of 157839479 is about 540.4288762536.

The spelling of 157839479 in words is "one hundred fifty-seven million, eight hundred thirty-nine thousand, four hundred seventy-nine".