12739169 has 4 divisors (see below), whose sum is σ = 12756144. Its totient is φ = 12722196.

The previous prime is 12739163. The next prime is 12739183. The reversal of 12739169 is 96193721.

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 12739169 - 2²⁰ = 11690593 is a prime.

It is a super-2 number, since 2×12739169² = 324572853621122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12739163) 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, 7307 + ... + 8880.

It is an arithmetic number, because the mean of its divisors is an integer number (3189036).

Almost surely, 2^12739169 is an apocalyptic number.

It is an amenable number.

12739169 is a deficient number, since it is larger than the sum of its proper divisors (16975).

12739169 is an equidigital number, since it uses as much as digits as its factorization.

12739169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16974.

The product of its digits is 20412, while the sum is 38.

The square root of 12739169 is about 3569.1972486821. The cubic root of 12739169 is about 233.5502660531.

The spelling of 12739169 in words is "twelve million, seven hundred thirty-nine thousand, one hundred sixty-nine".