12173169 has 4 divisors (see below), whose sum is σ = 16230896. Its totient is φ = 8115444.

The previous prime is 12173159. The next prime is 12173177. The reversal of 12173169 is 96137121.

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 not a de Polignac number, because 12173169 - 2²⁰ = 11124593 is a prime.

It is a super-2 number, since 2×12173169² = 296372087005122, 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 (12173159) 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, 2028859 + ... + 2028864.

It is an arithmetic number, because the mean of its divisors is an integer number (4057724).

Almost surely, 2^12173169 is an apocalyptic number.

It is an amenable number.

12173169 is a deficient number, since it is larger than the sum of its proper divisors (4057727).

12173169 is an equidigital number, since it uses as much as digits as its factorization.

12173169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057726.

The product of its digits is 2268, while the sum is 30.

The square root of 12173169 is about 3489.0068787550. The cubic root of 12173169 is about 230.0388655178.

The spelling of 12173169 in words is "twelve million, one hundred seventy-three thousand, one hundred sixty-nine".