113519 has 4 divisors (see below), whose sum is σ = 129744. Its totient is φ = 97296.

The previous prime is 113513. The next prime is 113537. The reversal of 113519 is 915311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113519 - 2¹² = 109423 is a prime.

It is a super-2 number, since 2×113519² = 25773126722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 113519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113513) 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 3 ways as a sum of consecutive naturals, for example, 8102 + ... + 8115.

It is an arithmetic number, because the mean of its divisors is an integer number (32436).

2¹¹³⁵¹⁹ is an apocalyptic number.

113519 is a deficient number, since it is larger than the sum of its proper divisors (16225).

113519 is an equidigital number, since it uses as much as digits as its factorization.

113519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16224.

The product of its digits is 135, while the sum is 20.

The square root of 113519 is about 336.9258078569. The cubic root of 113519 is about 48.4197845032.

The spelling of 113519 in words is "one hundred thirteen thousand, five hundred nineteen".