113919839 has 16 divisors (see below), whose sum is σ = 138516480. Its totient is φ = 92338560.

The previous prime is 113919833. The next prime is 113919847. The reversal of 113919839 is 938919311.

It is not a de Polignac number, because 113919839 - 2¹² = 113915743 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 113919839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113919833) 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, 12479 + ... + 19584.

It is an arithmetic number, because the mean of its divisors is an integer number (8657280).

Almost surely, 2^113919839 is an apocalyptic number.

113919839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

113919839 is a deficient number, since it is larger than the sum of its proper divisors (24596641).

113919839 is a wasteful number, since it uses less digits than its factorization.

113919839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32110.

The product of its digits is 52488, while the sum is 44.

The square root of 113919839 is about 10673.3237091358. The cubic root of 113919839 is about 484.7670812729.

The spelling of 113919839 in words is "one hundred thirteen million, nine hundred nineteen thousand, eight hundred thirty-nine".