12143252 has 24 divisors (see below), whose sum is σ = 23812320. Its totient is φ = 5369760.

The previous prime is 12143251. The next prime is 12143291. The reversal of 12143252 is 25234121.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2102 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (992180).

Almost surely, 2^12143252 is an apocalyptic number.

It is an amenable number.

12143252 is a deficient number, since it is larger than the sum of its proper divisors (11669068).

12143252 is a wasteful number, since it uses less digits than its factorization.

12143252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511 (or 7509 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 12143252 is about 3484.7169182015. The cubic root of 12143252 is about 229.8502617044.

Adding to 12143252 its reverse (25234121), we get a palindrome (37377373).

The spelling of 12143252 in words is "twelve million, one hundred forty-three thousand, two hundred fifty-two".