12744219 has 4 divisors (see below), whose sum is σ = 16992296. Its totient is φ = 8496144.

The previous prime is 12744209. The next prime is 12744223. The reversal of 12744219 is 91244721.

12744219 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12744219 - 2⁵ = 12744187 is a prime.

It is a super-2 number, since 2×12744219² = 324830235839922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12744209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124034 + ... + 2124039.

It is an arithmetic number, because the mean of its divisors is an integer number (4248074).

Almost surely, 2^12744219 is an apocalyptic number.

12744219 is a deficient number, since it is larger than the sum of its proper divisors (4248077).

12744219 is an equidigital number, since it uses as much as digits as its factorization.

12744219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248076.

The product of its digits is 4032, while the sum is 30.

The square root of 12744219 is about 3569.9046205746. The cubic root of 12744219 is about 233.5811229331.

The spelling of 12744219 in words is "twelve million, seven hundred forty-four thousand, two hundred nineteen".