113869 has 4 divisors (see below), whose sum is σ = 130144. Its totient is φ = 97596.

The previous prime is 113843. The next prime is 113891. The reversal of 113869 is 968311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113869 - 2⁵ = 113837 is a prime.

It is a super-2 number, since 2×113869² = 25932298322, 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 (113809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8127 + ... + 8140.

It is an arithmetic number, because the mean of its divisors is an integer number (32536).

2¹¹³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

113869 is a deficient number, since it is larger than the sum of its proper divisors (16275).

113869 is an equidigital number, since it uses as much as digits as its factorization.

113869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16274.

The product of its digits is 1296, while the sum is 28.

The square root of 113869 is about 337.4448103024. Note that the first 3 decimals coincide. The cubic root of 113869 is about 48.4694958217.

The spelling of 113869 in words is "one hundred thirteen thousand, eight hundred sixty-nine".