113391 has 12 divisors (see below), whose sum is σ = 168168. Its totient is φ = 73584.

The previous prime is 113383. The next prime is 113417. The reversal of 113391 is 193311.

It is not a de Polignac number, because 113391 - 2³ = 113383 is a prime.

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

113391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241 + ... + 533.

It is an arithmetic number, because the mean of its divisors is an integer number (14014).

2¹¹³³⁹¹ is an apocalyptic number.

113391 is a deficient number, since it is larger than the sum of its proper divisors (54777).

113391 is a wasteful number, since it uses less digits than its factorization.

113391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 339 counting only the distinct ones).

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

The square root of 113391 is about 336.7358014824. The cubic root of 113391 is about 48.4015788479.

The spelling of 113391 in words is "one hundred thirteen thousand, three hundred ninety-one".