12444231 has 4 divisors (see below), whose sum is σ = 16592312. Its totient is φ = 8296152.

The previous prime is 12444193. The next prime is 12444239. The reversal of 12444231 is 13244421.

12444231 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 13244421 = 3 ⋅4414807.

It is not a de Polignac number, because 12444231 - 2⁹ = 12443719 is a prime.

It is a super-2 number, since 2×12444231² = 309717770362722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12444198 and 12444207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444239) 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, 2074036 + ... + 2074041.

It is an arithmetic number, because the mean of its divisors is an integer number (4148078).

Almost surely, 2^12444231 is an apocalyptic number.

12444231 is a deficient number, since it is larger than the sum of its proper divisors (4148081).

12444231 is an equidigital number, since it uses as much as digits as its factorization.

12444231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148080.

The product of its digits is 768, while the sum is 21.

The square root of 12444231 is about 3527.6381617167. The cubic root of 12444231 is about 231.7337847612.

Adding to 12444231 its reverse (13244421), we get a palindrome (25688652).

The spelling of 12444231 in words is "twelve million, four hundred forty-four thousand, two hundred thirty-one".