12429143 has 2 divisors, whose sum is σ = 12429144. Its totient is φ = 12429142.

The previous prime is 12429127. The next prime is 12429163. The reversal of 12429143 is 34192421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12429143 - 2⁴ = 12429127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12429163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6214571 + 6214572.

It is an arithmetic number, because the mean of its divisors is an integer number (6214572).

Almost surely, 2^12429143 is an apocalyptic number.

12429143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12429143 is an equidigital number, since it uses as much as digits as its factorization.

12429143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 12429143 is about 3525.4989717769. The cubic root of 12429143 is about 231.6400917248.

The spelling of 12429143 in words is "twelve million, four hundred twenty-nine thousand, one hundred forty-three".