2143213585 has 16 divisors (see below), whose sum is σ = 2711583360. Its totient is φ = 1621710720.

The previous prime is 2143213571. The next prime is 2143213601. The reversal of 2143213585 is 5853123412.

It is not a de Polignac number, because 2143213585 - 2²¹ = 2141116433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2143213585.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42069 + ... + 77821.

It is an arithmetic number, because the mean of its divisors is an integer number (169473960).

Almost surely, 2^2143213585 is an apocalyptic number.

It is an amenable number.

2143213585 is a deficient number, since it is larger than the sum of its proper divisors (568369775).

2143213585 is a wasteful number, since it uses less digits than its factorization.

2143213585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36408.

The product of its digits is 28800, while the sum is 34.

The square root of 2143213585 is about 46294.8548437081. The cubic root of 2143213585 is about 1289.3034688993.

Adding to 2143213585 its reverse (5853123412), we get a palindrome (7996336997).

The spelling of 2143213585 in words is "two billion, one hundred forty-three million, two hundred thirteen thousand, five hundred eighty-five".