115839 has 12 divisors (see below), whose sum is σ = 170872. Its totient is φ = 75600.

The previous prime is 115837. The next prime is 115849. The reversal of 115839 is 938511.

115839 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 115839 - 2¹ = 115837 is a prime.

It is a Duffinian number.

115839 is an undulating number in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444 + ... + 654.

2¹¹⁵⁸³⁹ is an apocalyptic number.

115839 is a deficient number, since it is larger than the sum of its proper divisors (55033).

115839 is a wasteful number, since it uses less digits than its factorization.

115839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 275 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 115839 is about 340.3512891117. The cubic root of 115839 is about 48.7474160366.

The spelling of 115839 in words is "one hundred fifteen thousand, eight hundred thirty-nine".