137431682 has 8 divisors (see below), whose sum is σ = 206471052. Its totient is φ = 68608000.

The previous prime is 137431681. The next prime is 137431699. The reversal of 137431682 is 286134731.

137431682 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 137334961 + 96721 = 11719^2 + 311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (137431681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52319 + ... + 54882.

Almost surely, 2^137431682 is an apocalyptic number.

137431682 is a deficient number, since it is larger than the sum of its proper divisors (69039370).

137431682 is a wasteful number, since it uses less digits than its factorization.

137431682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107844.

The product of its digits is 24192, while the sum is 35.

The square root of 137431682 is about 11723.1259483126. The cubic root of 137431682 is about 516.0545607631.

The spelling of 137431682 in words is "one hundred thirty-seven million, four hundred thirty-one thousand, six hundred eighty-two".