2143441999 has 2 divisors, whose sum is σ = 2143442000. Its totient is φ = 2143441998.

The previous prime is 2143441943. The next prime is 2143442039. The reversal of 2143441999 is 9991443412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143441999 - 2⁷ = 2143441871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143441099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071720999 + 1071721000.

It is an arithmetic number, because the mean of its divisors is an integer number (1071721000).

Almost surely, 2^2143441999 is an apocalyptic number.

2143441999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143441999 is an equidigital number, since it uses as much as digits as its factorization.

2143441999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 2143441999 is about 46297.3217259919. The cubic root of 2143441999 is about 1289.3492699809.

The spelling of 2143441999 in words is "two billion, one hundred forty-three million, four hundred forty-one thousand, nine hundred ninety-nine".