137431698 has 32 divisors (see below), whose sum is σ = 285147456. Its totient is φ = 44126208.

The previous prime is 137431681. The next prime is 137431699. The reversal of 137431698 is 896134731.

137431698 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (137431699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15186 + ... + 22482.

It is an arithmetic number, because the mean of its divisors is an integer number (8910858).

Almost surely, 2^137431698 is an apocalyptic number.

137431698 is an abundant number, since it is smaller than the sum of its proper divisors (147715758).

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

137431698 is a wasteful number, since it uses less digits than its factorization.

137431698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7418.

The product of its digits is 108864, while the sum is 42.

The square root of 137431698 is about 11723.1266307244. The cubic root of 137431698 is about 516.0545807897.

The spelling of 137431698 in words is "one hundred thirty-seven million, four hundred thirty-one thousand, six hundred ninety-eight".