137507660 has 12 divisors (see below), whose sum is σ = 288766128. Its totient is φ = 55003056.

The previous prime is 137507641. The next prime is 137507681. The reversal of 137507660 is 66705731.

It is a self number, because there is not a number n which added to its sum of digits gives 137507660.

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 3 ways as a sum of consecutive naturals, for example, 3437672 + ... + 3437711.

It is an arithmetic number, because the mean of its divisors is an integer number (24063844).

Almost surely, 2^137507660 is an apocalyptic number.

137507660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137507660 is an abundant number, since it is smaller than the sum of its proper divisors (151258468).

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

137507660 is a wasteful number, since it uses less digits than its factorization.

137507660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875392 (or 6875390 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 137507660 is about 11726.3660185072. The cubic root of 137507660 is about 516.1496421147.

The spelling of 137507660 in words is "one hundred thirty-seven million, five hundred seven thousand, six hundred sixty".