16189143 has 16 divisors (see below), whose sum is σ = 22064640. Its totient is φ = 10555776.

The previous prime is 16189133. The next prime is 16189157. The reversal of 16189143 is 34198161.

It is not a de Polignac number, because 16189143 - 2⁴ = 16189127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16189123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47871 + ... + 48207.

It is an arithmetic number, because the mean of its divisors is an integer number (1379040).

Almost surely, 2^16189143 is an apocalyptic number.

16189143 is a deficient number, since it is larger than the sum of its proper divisors (5875497).

16189143 is a wasteful number, since it uses less digits than its factorization.

16189143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its digits is 5184, while the sum is 33.

The square root of 16189143 is about 4023.5734117821. The cubic root of 16189143 is about 252.9732613506.

The spelling of 16189143 in words is "sixteen million, one hundred eighty-nine thousand, one hundred forty-three".