2143004143 has 4 divisors (see below), whose sum is σ = 2449147600. Its totient is φ = 1836860688.

The previous prime is 2143004131. The next prime is 2143004183. The reversal of 2143004143 is 3414003412.

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 2143004143 - 2⁹ = 2143003631 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 (2143004183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153071718 + ... + 153071731.

It is an arithmetic number, because the mean of its divisors is an integer number (612286900).

Almost surely, 2^2143004143 is an apocalyptic number.

2143004143 is a deficient number, since it is larger than the sum of its proper divisors (306143457).

2143004143 is an equidigital number, since it uses as much as digits as its factorization.

2143004143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306143456.

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

The square root of 2143004143 is about 46292.5927444121. The cubic root of 2143004143 is about 1289.2614691820.

Adding to 2143004143 its reverse (3414003412), we get a palindrome (5557007555).

The spelling of 2143004143 in words is "two billion, one hundred forty-three million, four thousand, one hundred forty-three".