12143768 has 48 divisors (see below), whose sum is σ = 28536480. Its totient is φ = 4802112.

The previous prime is 12143767. The next prime is 12143773. The reversal of 12143768 is 86734121.

It is a super-2 number, since 2×12143768² = 294942202475648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143767) 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 11 ways as a sum of consecutive naturals, for example, 3905 + ... + 6287.

It is an arithmetic number, because the mean of its divisors is an integer number (594510).

Almost surely, 2^12143768 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 12143768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14268240).

12143768 is an abundant number, since it is smaller than the sum of its proper divisors (16392712).

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

12143768 is a wasteful number, since it uses less digits than its factorization.

12143768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2405 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 12143768 is about 3484.7909549929. The cubic root of 12143768 is about 229.8535173137.

Adding to 12143768 its reverse (86734121), we get a palindrome (98877889).

The spelling of 12143768 in words is "twelve million, one hundred forty-three thousand, seven hundred sixty-eight".