137686371 has 8 divisors (see below), whose sum is σ = 184983744. Its totient is φ = 91089960.

The previous prime is 137686363. The next prime is 137686397. The reversal of 137686371 is 173686731.

137686371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 137686371 - 2³ = 137686363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137686321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174781 + ... + 175566.

It is an arithmetic number, because the mean of its divisors is an integer number (23122968).

Almost surely, 2^137686371 is an apocalyptic number.

137686371 is a deficient number, since it is larger than the sum of its proper divisors (47297373).

137686371 is a wasteful number, since it uses less digits than its factorization.

137686371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350481.

The product of its digits is 127008, while the sum is 42.

The square root of 137686371 is about 11733.9835946707. The cubic root of 137686371 is about 516.3731489048.

The spelling of 137686371 in words is "one hundred thirty-seven million, six hundred eighty-six thousand, three hundred seventy-one".