113389 has 4 divisors (see below), whose sum is σ = 114300. Its totient is φ = 112480.

The previous prime is 113383. The next prime is 113417. The reversal of 113389 is 983311.

113389 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 983311 = 7 ⋅140473.

It can be written as a sum of positive squares in 2 ways, for example, as 4489 + 108900 = 67^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 113389 - 2³ = 113381 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232 + ... + 529.

It is an arithmetic number, because the mean of its divisors is an integer number (28575).

2¹¹³³⁸⁹ is an apocalyptic number.

It is an amenable number.

113389 is a deficient number, since it is larger than the sum of its proper divisors (911).

113389 is an equidigital number, since it uses as much as digits as its factorization.

113389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910.

The product of its digits is 648, while the sum is 25.

The square root of 113389 is about 336.7328317821. The cubic root of 113389 is about 48.4012942759.

The spelling of 113389 in words is "one hundred thirteen thousand, three hundred eighty-nine".