2144543205 has 64 divisors (see below), whose sum is σ = 4151347200. Its totient is φ = 923477760.

The previous prime is 2144543197. The next prime is 2144543249. The reversal of 2144543205 is 5023454412.

It is not a de Polignac number, because 2144543205 - 2³ = 2144543197 is a prime.

It is a super-2 number, since 2×2144543205² = 9198131116223344050, which contains 22 as substring.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 358126 + ... + 364064.

It is an arithmetic number, because the mean of its divisors is an integer number (64864800).

Almost surely, 2^2144543205 is an apocalyptic number.

It is an amenable number.

2144543205 is a deficient number, since it is larger than the sum of its proper divisors (2006803995).

2144543205 is a wasteful number, since it uses less digits than its factorization.

2144543205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6154.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2144543205 is about 46309.2129602739. The cubic root of 2144543205 is about 1289.5700357822.

Adding to 2144543205 its reverse (5023454412), we get a palindrome (7167997617).

The spelling of 2144543205 in words is "two billion, one hundred forty-four million, five hundred forty-three thousand, two hundred five".