1005143 has 2 divisors, whose sum is σ = 1005144. Its totient is φ = 1005142.

The previous prime is 1005133. The next prime is 1005161. The reversal of 1005143 is 3415001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1005143 - 2⁶ = 1005079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005133) 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, 502571 + 502572.

It is an arithmetic number, because the mean of its divisors is an integer number (502572).

2^1005143 is an apocalyptic number.

1005143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005143 is an equidigital number, since it uses as much as digits as its factorization.

1005143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1005143 is about 1002.5682021688. The cubic root of 1005143 is about 100.1711402763.

The spelling of 1005143 in words is "one million, five thousand, one hundred forty-three".