12143248 has 40 divisors (see below), whose sum is σ = 25692800. Its totient is φ = 5526144.

The previous prime is 12143237. The next prime is 12143251. The reversal of 12143248 is 84234121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16063 + ... + 16801.

It is an arithmetic number, because the mean of its divisors is an integer number (642320).

Almost surely, 2^12143248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12143248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12846400).

12143248 is an abundant number, since it is smaller than the sum of its proper divisors (13549552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12143248 is a wasteful number, since it uses less digits than its factorization.

12143248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 833 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 12143248 is about 3484.7163442668. The cubic root of 12143248 is about 229.8502364667.

Adding to 12143248 its reverse (84234121), we get a palindrome (96377369).

The spelling of 12143248 in words is "twelve million, one hundred forty-three thousand, two hundred forty-eight".