137265685 has 4 divisors (see below), whose sum is σ = 164718828. Its totient is φ = 109812544.

The previous prime is 137265673. The next prime is 137265703. The reversal of 137265685 is 586562731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88698724 + 48566961 = 9418^2 + 6969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137265685 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 13726564 + ... + 13726573.

It is an arithmetic number, because the mean of its divisors is an integer number (41179707).

Almost surely, 2^137265685 is an apocalyptic number.

It is an amenable number.

137265685 is a deficient number, since it is larger than the sum of its proper divisors (27453143).

137265685 is an equidigital number, since it uses as much as digits as its factorization.

137265685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27453142.

The product of its digits is 302400, while the sum is 43.

The square root of 137265685 is about 11716.0439142229. The cubic root of 137265685 is about 515.8467047083.

The spelling of 137265685 in words is "one hundred thirty-seven million, two hundred sixty-five thousand, six hundred eighty-five".