12116859 has 4 divisors (see below), whose sum is σ = 16155816. Its totient is φ = 8077904.

The previous prime is 12116843. The next prime is 12116861. The reversal of 12116859 is 95861121.

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 12116859 - 2⁴ = 12116843 is a prime.

It is a super-3 number, since 3×12116859³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12116899) 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, 2019474 + ... + 2019479.

It is an arithmetic number, because the mean of its divisors is an integer number (4038954).

Almost surely, 2^12116859 is an apocalyptic number.

12116859 is a deficient number, since it is larger than the sum of its proper divisors (4038957).

12116859 is an equidigital number, since it uses as much as digits as its factorization.

12116859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038956.

The product of its digits is 4320, while the sum is 33.

The square root of 12116859 is about 3480.9278935364. The cubic root of 12116859 is about 229.6836166589.

The spelling of 12116859 in words is "twelve million, one hundred sixteen thousand, eight hundred fifty-nine".