12143143 has 2 divisors, whose sum is σ = 12143144. Its totient is φ = 12143142.

The previous prime is 12143137. The next prime is 12143161. The reversal of 12143143 is 34134121.

12143143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12143143 - 2⁵ = 12143111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12143143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12143113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071571 + 6071572.

It is an arithmetic number, because the mean of its divisors is an integer number (6071572).

Almost surely, 2^12143143 is an apocalyptic number.

12143143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12143143 is an equidigital number, since it uses as much as digits as its factorization.

12143143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 12143143 is about 3484.7012784455. The cubic root of 12143143 is about 229.8495739766.

Adding to 12143143 its reverse (34134121), we get a palindrome (46277264).

It can be divided in two parts, 121 and 43143, that added together give a square (43264 = 208²).

The spelling of 12143143 in words is "twelve million, one hundred forty-three thousand, one hundred forty-three".