12945273 has 8 divisors (see below), whose sum is σ = 18829536. Its totient is φ = 7845600.

The previous prime is 12945263. The next prime is 12945293. The reversal of 12945273 is 37254921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12945273 - 2⁵ = 12945241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 392281 = 12945273 / (1 + 2 + 9 + 4 + 5 + 2 + 7 + 3).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12945203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196108 + ... + 196173.

It is an arithmetic number, because the mean of its divisors is an integer number (2353692).

Almost surely, 2^12945273 is an apocalyptic number.

It is an amenable number.

12945273 is a deficient number, since it is larger than the sum of its proper divisors (5884263).

12945273 is a wasteful number, since it uses less digits than its factorization.

12945273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392295.

The product of its digits is 15120, while the sum is 33.

The square root of 12945273 is about 3597.9540019294. The cubic root of 12945273 is about 234.8030521308.

The spelling of 12945273 in words is "twelve million, nine hundred forty-five thousand, two hundred seventy-three".