137725660 has 12 divisors (see below), whose sum is σ = 289223928. Its totient is φ = 55090256.

The previous prime is 137725649. The next prime is 137725663. The reversal of 137725660 is 66527731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137725663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3443122 + ... + 3443161.

It is an arithmetic number, because the mean of its divisors is an integer number (24101994).

Almost surely, 2^137725660 is an apocalyptic number.

137725660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137725660 is an abundant number, since it is smaller than the sum of its proper divisors (151498268).

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

137725660 is a wasteful number, since it uses less digits than its factorization.

137725660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886292 (or 6886290 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 137725660 is about 11735.6576296346. The cubic root of 137725660 is about 516.4222601690.

The spelling of 137725660 in words is "one hundred thirty-seven million, seven hundred twenty-five thousand, six hundred sixty".