12709219 has 2 divisors, whose sum is σ = 12709220. Its totient is φ = 12709218.

The previous prime is 12709211. The next prime is 12709237. The reversal of 12709219 is 91290721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12709219 - 2³ = 12709211 is a prime.

It is a super-2 number, since 2×12709219² = 323048495179922, which contains 22 as substring.

It is equal to p₈₃₁₄₇₈ and since 12709219 and 831478 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12709211) 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, 6354609 + 6354610.

It is an arithmetic number, because the mean of its divisors is an integer number (6354610).

Almost surely, 2^12709219 is an apocalyptic number.

12709219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12709219 is an equidigital number, since it uses as much as digits as its factorization.

12709219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 12709219 is about 3564.9991584852. Note that the first 3 decimals coincide. The cubic root of 12709219 is about 233.3670955680.

The spelling of 12709219 in words is "twelve million, seven hundred nine thousand, two hundred nineteen".