137431707 has 16 divisors (see below), whose sum is σ = 211022592. Its totient is φ = 77931360.

The previous prime is 137431699. The next prime is 137431729. The reversal of 137431707 is 707134731.

It is not a de Polignac number, because 137431707 - 2³ = 137431699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137431747) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22228 + ... + 27729.

It is an arithmetic number, because the mean of its divisors is an integer number (13188912).

Almost surely, 2^137431707 is an apocalyptic number.

137431707 is a deficient number, since it is larger than the sum of its proper divisors (73590885).

137431707 is a wasteful number, since it uses less digits than its factorization.

137431707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50098.

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 137431707 is about 11723.1270145810. The cubic root of 137431707 is about 516.0545920547.

The spelling of 137431707 in words is "one hundred thirty-seven million, four hundred thirty-one thousand, seven hundred seven".