12426143 has 2 divisors, whose sum is σ = 12426144. Its totient is φ = 12426142.

The previous prime is 12426137. The next prime is 12426151. The reversal of 12426143 is 34162421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12426143 - 2¹⁸ = 12163999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12426173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6213071 + 6213072.

It is an arithmetic number, because the mean of its divisors is an integer number (6213072).

Almost surely, 2^12426143 is an apocalyptic number.

12426143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12426143 is an equidigital number, since it uses as much as digits as its factorization.

12426143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 12426143 is about 3525.0734744116. The cubic root of 12426143 is about 231.6214533737.

Adding to 12426143 its reverse (34162421), we get a palindrome (46588564).

The spelling of 12426143 in words is "twelve million, four hundred twenty-six thousand, one hundred forty-three".