16671043 has 2 divisors, whose sum is σ = 16671044. Its totient is φ = 16671042.

The previous prime is 16671019. The next prime is 16671071. The reversal of 16671043 is 34017661.

It is an a-pointer prime, because the next prime (16671071) can be obtained adding 16671043 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16671043 - 2⁹ = 16670531 is a prime.

It is not a weakly prime, because it can be changed into another prime (16671643) 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, 8335521 + 8335522.

It is an arithmetic number, because the mean of its divisors is an integer number (8335522).

Almost surely, 2^16671043 is an apocalyptic number.

16671043 is a deficient number, since it is larger than the sum of its proper divisors (1).

16671043 is an equidigital number, since it uses as much as digits as its factorization.

16671043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 16671043 is about 4083.0188586388. The cubic root of 16671043 is about 255.4588330113.

It can be divided in two parts, 166710 and 43, that added together give a triangular number (166753 = T₅₇₇).

The spelling of 16671043 in words is "sixteen million, six hundred seventy-one thousand, forty-three".