16422143 has 2 divisors, whose sum is σ = 16422144. Its totient is φ = 16422142.

The previous prime is 16422139. The next prime is 16422163. The reversal of 16422143 is 34122461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16422143 - 2² = 16422139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16422113) 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, 8211071 + 8211072.

It is an arithmetic number, because the mean of its divisors is an integer number (8211072).

Almost surely, 2^16422143 is an apocalyptic number.

16422143 is a deficient number, since it is larger than the sum of its proper divisors (1).

16422143 is an equidigital number, since it uses as much as digits as its factorization.

16422143 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 16422143 is about 4052.4243361228. The cubic root of 16422143 is about 254.1811126908.

The spelling of 16422143 in words is "sixteen million, four hundred twenty-two thousand, one hundred forty-three".