12679169 has 4 divisors (see below), whose sum is σ = 12686340. Its totient is φ = 12672000.

The previous prime is 12679157. The next prime is 12679171. The reversal of 12679169 is 96197621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96197621 = 13 ⋅7399817.

It can be written as a sum of positive squares in 2 ways, for example, as 4906225 + 7772944 = 2215^2 + 2788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12679169 is a prime.

It is a super-2 number, since 2×12679169² = 321522653061122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12679129) 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, 1169 + ... + 5169.

It is an arithmetic number, because the mean of its divisors is an integer number (3171585).

Almost surely, 2^12679169 is an apocalyptic number.

It is an amenable number.

12679169 is a deficient number, since it is larger than the sum of its proper divisors (7171).

12679169 is an equidigital number, since it uses as much as digits as its factorization.

12679169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7170.

The product of its digits is 40824, while the sum is 41.

The square root of 12679169 is about 3560.7820770162. The cubic root of 12679169 is about 233.1830240558.

The spelling of 12679169 in words is "twelve million, six hundred seventy-nine thousand, one hundred sixty-nine".