16673143 has 4 divisors (see below), whose sum is σ = 16908048. Its totient is φ = 16438240.

The previous prime is 16673131. The next prime is 16673149. The reversal of 16673143 is 34137661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16673143 - 2²¹ = 14575991 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16673149) 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 in 3 ways as a sum of consecutive naturals, for example, 117346 + ... + 117487.

It is an arithmetic number, because the mean of its divisors is an integer number (4227012).

Almost surely, 2^16673143 is an apocalyptic number.

16673143 is a deficient number, since it is larger than the sum of its proper divisors (234905).

16673143 is an equidigital number, since it uses as much as digits as its factorization.

16673143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234904.

The product of its digits is 9072, while the sum is 31.

The square root of 16673143 is about 4083.2760132031. The cubic root of 16673143 is about 255.4695590154.

The spelling of 16673143 in words is "sixteen million, six hundred seventy-three thousand, one hundred forty-three".