12757219 has 2 divisors, whose sum is σ = 12757220. Its totient is φ = 12757218.

The previous prime is 12757201. The next prime is 12757247. The reversal of 12757219 is 91275721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12757219 - 2⁷ = 12757091 is a prime.

It is a super-2 number, since 2×12757219² = 325493273227922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12754219) 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, 6378609 + 6378610.

It is an arithmetic number, because the mean of its divisors is an integer number (6378610).

Almost surely, 2^12757219 is an apocalyptic number.

12757219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12757219 is an equidigital number, since it uses as much as digits as its factorization.

12757219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 34.

The square root of 12757219 is about 3571.7249334180. The cubic root of 12757219 is about 233.6605190024.

The spelling of 12757219 in words is "twelve million, seven hundred fifty-seven thousand, two hundred nineteen".