113919 has 16 divisors (see below), whose sum is σ = 172032. Its totient is φ = 66528.

The previous prime is 113909. The next prime is 113921. The reversal of 113919 is 919311.

It is not a de Polignac number, because 113919 - 2⁴ = 113903 is a prime.

It is a super-2 number, since 2×113919² = 25955077122, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113909) 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, 834 + ... + 960.

It is an arithmetic number, because the mean of its divisors is an integer number (10752).

2¹¹³⁹¹⁹ is an apocalyptic number.

113919 is a deficient number, since it is larger than the sum of its proper divisors (58113).

113919 is a wasteful number, since it uses less digits than its factorization.

113919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166.

The product of its digits is 243, while the sum is 24.

The square root of 113919 is about 337.5188883603. The cubic root of 113919 is about 48.4765891195.

The spelling of 113919 in words is "one hundred thirteen thousand, nine hundred nineteen".