12945173 has 2 divisors, whose sum is σ = 12945174. Its totient is φ = 12945172.

The previous prime is 12945169. The next prime is 12945187. The reversal of 12945173 is 37154921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9872164 + 3073009 = 3142^2 + 1753^2 .

It is an emirp because it is prime and its reverse (37154921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12945173 - 2² = 12945169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12945103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472586 + 6472587.

It is an arithmetic number, because the mean of its divisors is an integer number (6472587).

Almost surely, 2^12945173 is an apocalyptic number.

It is an amenable number.

12945173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12945173 is an equidigital number, since it uses as much as digits as its factorization.

12945173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 12945173 is about 3597.9401051157. The cubic root of 12945173 is about 234.8024475249.

The spelling of 12945173 in words is "twelve million, nine hundred forty-five thousand, one hundred seventy-three".