2143244005 has 16 divisors (see below), whose sum is σ = 2942184960. Its totient is φ = 1468213632.

The previous prime is 2143243979. The next prime is 2143244021. The reversal of 2143244005 is 5004423412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2143244005 - 2⁷ = 2143243877 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 6897 + ... + 65833.

It is an arithmetic number, because the mean of its divisors is an integer number (183886560).

Almost surely, 2^2143244005 is an apocalyptic number.

It is an amenable number.

2143244005 is a deficient number, since it is larger than the sum of its proper divisors (798940955).

2143244005 is a wasteful number, since it uses less digits than its factorization.

2143244005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59988.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2143244005 is about 46295.1833887717. The cubic root of 2143244005 is about 1289.3095688398.

Adding to 2143244005 its reverse (5004423412), we get a palindrome (7147667417).

The spelling of 2143244005 in words is "two billion, one hundred forty-three million, two hundred forty-four thousand, five".