2804143 has 2 divisors, whose sum is σ = 2804144. Its totient is φ = 2804142.

The previous prime is 2804141. The next prime is 2804147. The reversal of 2804143 is 3414082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2804143 - 2¹ = 2804141 is a prime.

Together with 2804141, it forms a pair of twin primes.

2804143 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2804141) 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, 1402071 + 1402072.

It is an arithmetic number, because the mean of its divisors is an integer number (1402072).

2^2804143 is an apocalyptic number.

2804143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2804143 is an equidigital number, since it uses as much as digits as its factorization.

2804143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2804143 is about 1674.5575535048. The cubic root of 2804143 is about 141.0154569511.

The spelling of 2804143 in words is "two million, eight hundred four thousand, one hundred forty-three".