113139 has 12 divisors (see below), whose sum is σ = 176176. Its totient is φ = 69552.

The previous prime is 113131. The next prime is 113143. The reversal of 113139 is 931311.

It is not a de Polignac number, because 113139 - 2³ = 113131 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (113131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367 + ... + 600.

2¹¹³¹³⁹ is an apocalyptic number.

113139 is a deficient number, since it is larger than the sum of its proper divisors (63037).

113139 is a wasteful number, since it uses less digits than its factorization.

113139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 983 counting only the distinct ones).

The product of its digits is 81, while the sum is 18.

The square root of 113139 is about 336.3614127691. The cubic root of 113139 is about 48.3656963860.

It can be divided in two parts, 113 and 139, that added together give a palindrome (252).

The spelling of 113139 in words is "one hundred thirteen thousand, one hundred thirty-nine".