12943173 has 4 divisors (see below), whose sum is σ = 17257568. Its totient is φ = 8628780.

The previous prime is 12943169. The next prime is 12943187. The reversal of 12943173 is 37134921.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37134921 = 3 ⋅12378307.

It is not a de Polignac number, because 12943173 - 2² = 12943169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12943173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12943153) 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, 2157193 + ... + 2157198.

It is an arithmetic number, because the mean of its divisors is an integer number (4314392).

Almost surely, 2^12943173 is an apocalyptic number.

It is an amenable number.

12943173 is a deficient number, since it is larger than the sum of its proper divisors (4314395).

12943173 is an equidigital number, since it uses as much as digits as its factorization.

12943173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314394.

The product of its digits is 4536, while the sum is 30.

The square root of 12943173 is about 3597.6621575684. The cubic root of 12943173 is about 234.7903547528.

The spelling of 12943173 in words is "twelve million, nine hundred forty-three thousand, one hundred seventy-three".