157136979 has 8 divisors (see below), whose sum is σ = 209984400. Its totient is φ = 104523776.

The previous prime is 157136971. The next prime is 157137017. The reversal of 157136979 is 979631751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157136979 - 2³ = 157136971 is a prime.

It is a super-3 number, since 3×157136979³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (157136971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56982 + ... + 59675.

It is an arithmetic number, because the mean of its divisors is an integer number (26248050).

Almost surely, 2^157136979 is an apocalyptic number.

157136979 is a deficient number, since it is larger than the sum of its proper divisors (52847421).

157136979 is a wasteful number, since it uses less digits than its factorization.

157136979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117109.

The product of its digits is 357210, while the sum is 48.

The square root of 157136979 is about 12535.4289515756. The cubic root of 157136979 is about 539.6259171843.

The spelling of 157136979 in words is "one hundred fifty-seven million, one hundred thirty-six thousand, nine hundred seventy-nine".