137706870 has 64 divisors (see below), whose sum is σ = 397601280. Its totient is φ = 29818368.

The previous prime is 137706869. The next prime is 137706893. The reversal of 137706870 is 78607731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13267 + ... + 21246.

It is an arithmetic number, because the mean of its divisors is an integer number (6212520).

Almost surely, 2^137706870 is an apocalyptic number.

137706870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137706870 is an abundant number, since it is smaller than the sum of its proper divisors (259894410).

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

137706870 is a wasteful number, since it uses less digits than its factorization.

137706870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34549.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 137706870 is about 11734.8570506845. The cubic root of 137706870 is about 516.3987738276.

The spelling of 137706870 in words is "one hundred thirty-seven million, seven hundred six thousand, eight hundred seventy".