137943685 has 8 divisors (see below), whose sum is σ = 180580896. Its totient is φ = 100322640.

The previous prime is 137943671. The next prime is 137943697. The reversal of 137943685 is 586349731.

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

It is not a de Polignac number, because 137943685 - 2⁵ = 137943653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253979 + ... + 1254088.

It is an arithmetic number, because the mean of its divisors is an integer number (22572612).

Almost surely, 2^137943685 is an apocalyptic number.

It is an amenable number.

137943685 is a deficient number, since it is larger than the sum of its proper divisors (42637211).

137943685 is a wasteful number, since it uses less digits than its factorization.

137943685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508083.

The product of its digits is 544320, while the sum is 46.

The square root of 137943685 is about 11744.9429543102. The cubic root of 137943685 is about 516.6946219121.

The spelling of 137943685 in words is "one hundred thirty-seven million, nine hundred forty-three thousand, six hundred eighty-five".