12744419 has 2 divisors, whose sum is σ = 12744420. Its totient is φ = 12744418.

The previous prime is 12744409. The next prime is 12744437. The reversal of 12744419 is 91444721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12744419 is a prime.

It is a super-2 number, since 2×12744419² = 324840431295122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12744409) 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, 6372209 + 6372210.

It is an arithmetic number, because the mean of its divisors is an integer number (6372210).

Almost surely, 2^12744419 is an apocalyptic number.

12744419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12744419 is an equidigital number, since it uses as much as digits as its factorization.

12744419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 12744419 is about 3569.9326324176. The cubic root of 12744419 is about 233.5823448200.

The spelling of 12744419 in words is "twelve million, seven hundred forty-four thousand, four hundred nineteen".