16946143 has 2 divisors, whose sum is σ = 16946144. Its totient is φ = 16946142.

The previous prime is 16946141. The next prime is 16946159. The reversal of 16946143 is 34164961.

It is a weak prime.

It is an emirp because it is prime and its reverse (34164961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16946143 - 2¹ = 16946141 is a prime.

Together with 16946141, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16946099 and 16946108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16946141) 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 as a sum of consecutive naturals, namely, 8473071 + 8473072.

It is an arithmetic number, because the mean of its divisors is an integer number (8473072).

Almost surely, 2^16946143 is an apocalyptic number.

16946143 is a deficient number, since it is larger than the sum of its proper divisors (1).

16946143 is an equidigital number, since it uses as much as digits as its factorization.

16946143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 16946143 is about 4116.5693240853. The cubic root of 16946143 is about 256.8563394389.

The spelling of 16946143 in words is "sixteen million, nine hundred forty-six thousand, one hundred forty-three".