12113859 has 4 divisors (see below), whose sum is σ = 16151816. Its totient is φ = 8075904.

The previous prime is 12113833. The next prime is 12113861. The reversal of 12113859 is 95831121.

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

It is not a de Polignac number, because 12113859 - 2⁹ = 12113347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12113869) 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, 2018974 + ... + 2018979.

It is an arithmetic number, because the mean of its divisors is an integer number (4037954).

Almost surely, 2^12113859 is an apocalyptic number.

12113859 is a deficient number, since it is larger than the sum of its proper divisors (4037957).

12113859 is an equidigital number, since it uses as much as digits as its factorization.

12113859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037956.

The product of its digits is 2160, while the sum is 30.

The square root of 12113859 is about 3480.4969472764. The cubic root of 12113859 is about 229.6646593883.

The spelling of 12113859 in words is "twelve million, one hundred thirteen thousand, eight hundred fifty-nine".