137172839631 has 8 divisors (see below), whose sum is σ = 183069505584. Its totient is φ = 91362366720.

The previous prime is 137172839623. The next prime is 137172839633. The reversal of 137172839631 is 136938271731.

It is a happy number.

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

It is not a de Polignac number, because 137172839631 - 2³ = 137172839623 is a prime.

It is a super-2 number, since 2×137172839631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137172839633) 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, 21544546 + ... + 21550911.

It is an arithmetic number, because the mean of its divisors is an integer number (22883688198).

Almost surely, 2^137172839631 is an apocalyptic number.

137172839631 is a deficient number, since it is larger than the sum of its proper divisors (45896665953).

137172839631 is a wasteful number, since it uses less digits than its factorization.

137172839631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43096521.

The product of its digits is 1143072, while the sum is 51.

The spelling of 137172839631 in words is "one hundred thirty-seven billion, one hundred seventy-two million, eight hundred thirty-nine thousand, six hundred thirty-one".