12244289 has 4 divisors (see below), whose sum is σ = 12399360. Its totient is φ = 12089220.

The previous prime is 12244259. The next prime is 12244307. The reversal of 12244289 is 98244221.

It is a happy number.

12244289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98244221 = 61 ⋅1610561.

It is a cyclic number.

It is not a de Polignac number, because 12244289 - 2⁸ = 12244033 is a prime.

It is a super-2 number, since 2×12244289² = 299845226231042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12244249) 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, 77417 + ... + 77574.

It is an arithmetic number, because the mean of its divisors is an integer number (3099840).

Almost surely, 2^12244289 is an apocalyptic number.

It is an amenable number.

12244289 is a deficient number, since it is larger than the sum of its proper divisors (155071).

12244289 is an equidigital number, since it uses as much as digits as its factorization.

12244289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155070.

The product of its digits is 9216, while the sum is 32.

The square root of 12244289 is about 3499.1840477460. The cubic root of 12244289 is about 230.4859856308.

The spelling of 12244289 in words is "twelve million, two hundred forty-four thousand, two hundred eighty-nine".