137172836 has 12 divisors (see below), whose sum is σ = 240348528. Its totient is φ = 68501832.

The previous prime is 137172829. The next prime is 137172853. The reversal of 137172836 is 638271731.

It is a self number, because there is not a number n which added to its sum of digits gives 137172836.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17426 + ... + 24041.

It is an arithmetic number, because the mean of its divisors is an integer number (20029044).

Almost surely, 2^137172836 is an apocalyptic number.

It is an amenable number.

137172836 is a deficient number, since it is larger than the sum of its proper divisors (103175692).

137172836 is a wasteful number, since it uses less digits than its factorization.

137172836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42298 (or 42296 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 137172836 is about 11712.0807715794. The cubic root of 137172836 is about 515.7303691169.

The spelling of 137172836 in words is "one hundred thirty-seven million, one hundred seventy-two thousand, eight hundred thirty-six".