12965219 has 2 divisors, whose sum is σ = 12965220. Its totient is φ = 12965218.

The previous prime is 12965213. The next prime is 12965257. The reversal of 12965219 is 91256921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12965219 is a prime.

It is a super-2 number, since 2×12965219² = 336193807435922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12965213) 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 as a sum of consecutive naturals, namely, 6482609 + 6482610.

It is an arithmetic number, because the mean of its divisors is an integer number (6482610).

Almost surely, 2^12965219 is an apocalyptic number.

12965219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12965219 is an equidigital number, since it uses as much as digits as its factorization.

12965219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 12965219 is about 3600.7247881503. The cubic root of 12965219 is about 234.9235846310.

The spelling of 12965219 in words is "twelve million, nine hundred sixty-five thousand, two hundred nineteen".