12345143 has 2 divisors, whose sum is σ = 12345144. Its totient is φ = 12345142.

The previous prime is 12345127. The next prime is 12345149. The reversal of 12345143 is 34154321.

12345143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (34154321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12345143 - 2⁴ = 12345127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12345149) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172571 + 6172572.

It is an arithmetic number, because the mean of its divisors is an integer number (6172572).

Almost surely, 2^12345143 is an apocalyptic number.

12345143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12345143 is an equidigital number, since it uses as much as digits as its factorization.

12345143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 12345143 is about 3513.5655679096. The cubic root of 12345143 is about 231.1170798833.

Adding to 12345143 its reverse (34154321), we get a palindrome (46499464).

The spelling of 12345143 in words is "twelve million, three hundred forty-five thousand, one hundred forty-three".