137507697 has 12 divisors (see below), whose sum is σ = 199939584. Its totient is φ = 91063800.

The previous prime is 137507681. The next prime is 137507737. The reversal of 137507697 is 796705731.

137507697 is a `hidden beast` number, since 137 + 507 + 6 + 9 + 7 = 666.

It is not a de Polignac number, because 137507697 - 2⁴ = 137507681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137507627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49233 + ... + 51950.

It is an arithmetic number, because the mean of its divisors is an integer number (16661632).

Almost surely, 2^137507697 is an apocalyptic number.

It is an amenable number.

137507697 is a deficient number, since it is larger than the sum of its proper divisors (62431887).

137507697 is a wasteful number, since it uses less digits than its factorization.

137507697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101340 (or 101337 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 45.

The square root of 137507697 is about 11726.3675961484. The cubic root of 137507697 is about 516.1496884091.

The spelling of 137507697 in words is "one hundred thirty-seven million, five hundred seven thousand, six hundred ninety-seven".