839140137 has 48 divisors (see below), whose sum is σ = 1343160000. Its totient is φ = 500618880.

The previous prime is 839140121. The next prime is 839140163. The reversal of 839140137 is 731041938.

It is a happy number.

It is not a de Polignac number, because 839140137 - 2⁴ = 839140121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (839140177) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2404239 + ... + 2404587.

It is an arithmetic number, because the mean of its divisors is an integer number (27982500).

Almost surely, 2^839140137 is an apocalyptic number.

It is an amenable number.

839140137 is a deficient number, since it is larger than the sum of its proper divisors (504019863).

839140137 is a wasteful number, since it uses less digits than its factorization.

839140137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 839140137 is about 28967.9156481788. The cubic root of 839140137 is about 943.2167361069.

The spelling of 839140137 in words is "eight hundred thirty-nine million, one hundred forty thousand, one hundred thirty-seven".