137986872 has 32 divisors (see below), whose sum is σ = 356864400. Its totient is φ = 44409344.

The previous prime is 137986831. The next prime is 137986883. The reversal of 137986872 is 278689731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98433 + ... + 99824.

Almost surely, 2^137986872 is an apocalyptic number.

137986872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137986872 is an abundant number, since it is smaller than the sum of its proper divisors (218877528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137986872 is a wasteful number, since it uses less digits than its factorization.

137986872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198295 (or 198291 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 137986872 is about 11746.7813463944. The cubic root of 137986872 is about 516.7485380260.

The spelling of 137986872 in words is "one hundred thirty-seven million, nine hundred eighty-six thousand, eight hundred seventy-two".