16996143 has 4 divisors (see below), whose sum is σ = 22661528. Its totient is φ = 11330760.

The previous prime is 16996129. The next prime is 16996163. The reversal of 16996143 is 34169961.

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

It is not a de Polignac number, because 16996143 - 2⁸ = 16995887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16996123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2832688 + ... + 2832693.

It is an arithmetic number, because the mean of its divisors is an integer number (5665382).

Almost surely, 2^16996143 is an apocalyptic number.

16996143 is a deficient number, since it is larger than the sum of its proper divisors (5665385).

16996143 is an equidigital number, since it uses as much as digits as its factorization.

16996143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665384.

The product of its digits is 34992, while the sum is 39.

The square root of 16996143 is about 4122.6378691318. The cubic root of 16996143 is about 257.1087116477.

The spelling of 16996143 in words is "sixteen million, nine hundred ninety-six thousand, one hundred forty-three".