12143224 has 16 divisors (see below), whose sum is σ = 22806000. Its totient is φ = 6061632.

The previous prime is 12143221. The next prime is 12143233. The reversal of 12143224 is 42234121.

12143224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12143224² = 294915778228352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143221) 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, 7669 + ... + 9115.

It is an arithmetic number, because the mean of its divisors is an integer number (1425375).

Almost surely, 2^12143224 is an apocalyptic number.

It is an amenable number.

12143224 is a deficient number, since it is larger than the sum of its proper divisors (10662776).

12143224 is a wasteful number, since it uses less digits than its factorization.

12143224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502 (or 2498 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 12143224 is about 3484.7129006562. The cubic root of 12143224 is about 229.8500850408.

Adding to 12143224 its reverse (42234121), we get a palindrome (54377345).

The spelling of 12143224 in words is "twelve million, one hundred forty-three thousand, two hundred twenty-four".