12244919 has 4 divisors (see below), whose sum is σ = 12452520. Its totient is φ = 12037320.

The previous prime is 12244909. The next prime is 12244997. The reversal of 12244919 is 91944221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91944221 = 5813 ⋅15817.

It is a cyclic number.

It is not a de Polignac number, because 12244919 - 2⁸ = 12244663 is a prime.

It is a super-2 number, since 2×12244919² = 299876082633122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12244909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103712 + ... + 103829.

It is an arithmetic number, because the mean of its divisors is an integer number (3113130).

Almost surely, 2^12244919 is an apocalyptic number.

12244919 is a deficient number, since it is larger than the sum of its proper divisors (207601).

12244919 is an equidigital number, since it uses as much as digits as its factorization.

12244919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207600.

The product of its digits is 5184, while the sum is 32.

The square root of 12244919 is about 3499.2740675746. The cubic root of 12244919 is about 230.4899385943.

The spelling of 12244919 in words is "twelve million, two hundred forty-four thousand, nine hundred nineteen".