137031993171 has 12 divisors (see below), whose sum is σ = 203284699072. Its totient is φ = 88885616976.

The previous prime is 137031993167. The next prime is 137031993179. The reversal of 137031993171 is 171399130731.

It is a happy number.

137031993171 is a `hidden beast` number, since 13 + 7 + 0 + 319 + 9 + 317 + 1 = 666.

It is not a de Polignac number, because 137031993171 - 2² = 137031993167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137031993179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205753411 + ... + 205754076.

Almost surely, 2^137031993171 is an apocalyptic number.

137031993171 is a deficient number, since it is larger than the sum of its proper divisors (66252705901).

137031993171 is a wasteful number, since it uses less digits than its factorization.

137031993171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411507530 (or 411507527 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The spelling of 137031993171 in words is "one hundred thirty-seven billion, thirty-one million, nine hundred ninety-three thousand, one hundred seventy-one".