157639959 has 16 divisors (see below), whose sum is σ = 234838240. Its totient is φ = 104509440.

The previous prime is 157639949. The next prime is 157639961. The reversal of 157639959 is 959936751.

157639959 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 157639959 - 2⁷ = 157639831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157639919) 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, 11242 + ... + 21015.

It is an arithmetic number, because the mean of its divisors is an integer number (14677390).

Almost surely, 2^157639959 is an apocalyptic number.

157639959 is a deficient number, since it is larger than the sum of its proper divisors (77198281).

157639959 is a wasteful number, since it uses less digits than its factorization.

157639959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32447 (or 32441 counting only the distinct ones).

The product of its digits is 2296350, while the sum is 54.

The square root of 157639959 is about 12555.4752598219. The cubic root of 157639959 is about 540.2010670994.

The spelling of 157639959 in words is "one hundred fifty-seven million, six hundred thirty-nine thousand, nine hundred fifty-nine".