12945207 has 8 divisors (see below), whose sum is σ = 18829440. Its totient is φ = 7845560.

The previous prime is 12945203. The next prime is 12945221. The reversal of 12945207 is 70254921.

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

It is a cyclic number.

It is not a de Polignac number, because 12945207 - 2² = 12945203 is a prime.

It is a congruent 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, 196107 + ... + 196172.

It is an arithmetic number, because the mean of its divisors is an integer number (2353680).

Almost surely, 2^12945207 is an apocalyptic number.

12945207 is a deficient number, since it is larger than the sum of its proper divisors (5884233).

12945207 is a wasteful number, since it uses less digits than its factorization.

12945207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392293.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 12945207 is about 3597.9448300384. The cubic root of 12945207 is about 234.8026530913.

The spelling of 12945207 in words is "twelve million, nine hundred forty-five thousand, two hundred seven".