12443223 has 8 divisors (see below), whose sum is σ = 17867248. Its totient is φ = 7657344.

The previous prime is 12443219. The next prime is 12443231. The reversal of 12443223 is 32234421.

12443223 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12443223 - 2² = 12443219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12443223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443243) 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 7 ways as a sum of consecutive naturals, for example, 159490 + ... + 159567.

It is an arithmetic number, because the mean of its divisors is an integer number (2233406).

Almost surely, 2^12443223 is an apocalyptic number.

12443223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12443223 is a deficient number, since it is larger than the sum of its proper divisors (5424025).

12443223 is a wasteful number, since it uses less digits than its factorization.

12443223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319073.

The product of its digits is 1152, while the sum is 21.

The square root of 12443223 is about 3527.4952870273. The cubic root of 12443223 is about 231.7275276728.

Adding to 12443223 its reverse (32234421), we get a palindrome (44677644).

The spelling of 12443223 in words is "twelve million, four hundred forty-three thousand, two hundred twenty-three".