137979563 has 8 divisors (see below), whose sum is σ = 140078448. Its totient is φ = 135886464.

The previous prime is 137979559. The next prime is 137979619. The reversal of 137979563 is 365979731.

137979563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 137979563 - 2² = 137979559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137970563) 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, 79220 + ... + 80942.

It is an arithmetic number, because the mean of its divisors is an integer number (17509806).

Almost surely, 2^137979563 is an apocalyptic number.

137979563 is a deficient number, since it is larger than the sum of its proper divisors (2098885).

137979563 is a wasteful number, since it uses less digits than its factorization.

137979563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893.

The product of its digits is 1071630, while the sum is 50.

The square root of 137979563 is about 11746.4702357772. The cubic root of 137979563 is about 516.7394140137.

The spelling of 137979563 in words is "one hundred thirty-seven million, nine hundred seventy-nine thousand, five hundred sixty-three".