137913839 has 8 divisors (see below), whose sum is σ = 160969728. Its totient is φ = 115696440.

The previous prime is 137913833. The next prime is 137913847. The reversal of 137913839 is 938319731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137913839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137913839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137913833) 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, 209267 + ... + 209924.

It is an arithmetic number, because the mean of its divisors is an integer number (20121216).

Almost surely, 2^137913839 is an apocalyptic number.

137913839 is a deficient number, since it is larger than the sum of its proper divisors (23055889).

137913839 is an equidigital number, since it uses as much as digits as its factorization.

137913839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419245.

The product of its digits is 122472, while the sum is 44.

The square root of 137913839 is about 11743.6722961772. The cubic root of 137913839 is about 516.6573545784.

The spelling of 137913839 in words is "one hundred thirty-seven million, nine hundred thirteen thousand, eight hundred thirty-nine".