1002443143 has 4 divisors (see below), whose sum is σ = 1079554168. Its totient is φ = 925332120.

The previous prime is 1002443129. The next prime is 1002443159. The reversal of 1002443143 is 3413442001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002443143 - 2⁹ = 1002442631 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 (1002443843) 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 in 3 ways as a sum of consecutive naturals, for example, 38555493 + ... + 38555518.

It is an arithmetic number, because the mean of its divisors is an integer number (269888542).

Almost surely, 2^1002443143 is an apocalyptic number.

1002443143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1002443143 is a deficient number, since it is larger than the sum of its proper divisors (77111025).

1002443143 is an equidigital number, since it uses as much as digits as its factorization.

1002443143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77111024.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1002443143 is about 31661.3825187720. The cubic root of 1002443143 is about 1000.8137186823.

Adding to 1002443143 its reverse (3413442001), we get a palindrome (4415885144).

The spelling of 1002443143 in words is "one billion, two million, four hundred forty-three thousand, one hundred forty-three".