16670143 has 20 divisors (see below), whose sum is σ = 19965528. Its totient is φ = 13912080.

The previous prime is 16670123. The next prime is 16670177. The reversal of 16670143 is 34107661.

It is a de Polignac number, because none of the positive numbers 2^k-16670143 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 (16670123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 127188 + ... + 127318.

Almost surely, 2^16670143 is an apocalyptic number.

16670143 is a deficient number, since it is larger than the sum of its proper divisors (3295385).

16670143 is an frugal number, since it uses more digits than its factorization.

16670143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 191 counting only the distinct ones).

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

The square root of 16670143 is about 4082.9086445817. The cubic root of 16670143 is about 255.4542358767.

The spelling of 16670143 in words is "sixteen million, six hundred seventy thousand, one hundred forty-three".