1004002143 has 16 divisors (see below), whose sum is σ = 1350048000. Its totient is φ = 663658560.

The previous prime is 1004002117. The next prime is 1004002151. The reversal of 1004002143 is 3412004001.

It is not a de Polignac number, because 1004002143 - 2²⁵ = 970447711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004002193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582523 + ... + 584243.

It is an arithmetic number, because the mean of its divisors is an integer number (84378000).

Almost surely, 2^1004002143 is an apocalyptic number.

1004002143 is a deficient number, since it is larger than the sum of its proper divisors (346045857).

1004002143 is a wasteful number, since it uses less digits than its factorization.

1004002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1004002143 is about 31685.9928517318. The cubic root of 1004002143 is about 1001.3322719299.

Adding to 1004002143 its reverse (3412004001), we get a palindrome (4416006144).

The spelling of 1004002143 in words is "one billion, four million, two thousand, one hundred forty-three".