137840717 has 16 divisors (see below), whose sum is σ = 161246592. Its totient is φ = 115395840.

The previous prime is 137840713. The next prime is 137840753. The reversal of 137840717 is 717048731.

It is not a de Polignac number, because 137840717 - 2² = 137840713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137840713) 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, 53417 + ... + 55937.

It is an arithmetic number, because the mean of its divisors is an integer number (10077912).

Almost surely, 2^137840717 is an apocalyptic number.

It is an amenable number.

137840717 is a deficient number, since it is larger than the sum of its proper divisors (23405875).

137840717 is a wasteful number, since it uses less digits than its factorization.

137840717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 137840717 is about 11740.5586323650. The cubic root of 137840717 is about 516.5660277564.

The spelling of 137840717 in words is "one hundred thirty-seven million, eight hundred forty thousand, seven hundred seventeen".