2143432205 has 8 divisors (see below), whose sum is σ = 2607353592. Its totient is φ = 1691255808.

The previous prime is 2143432189. The next prime is 2143432211. The reversal of 2143432205 is 5022343412.

It can be written as a sum of positive squares in 4 ways, for example, as 377835844 + 1765596361 = 19438^2 + 42019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2143432205 - 2⁴ = 2143432189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2935844 + ... + 2936573.

It is an arithmetic number, because the mean of its divisors is an integer number (325919199).

Almost surely, 2^2143432205 is an apocalyptic number.

It is an amenable number.

2143432205 is a deficient number, since it is larger than the sum of its proper divisors (463921387).

2143432205 is an equidigital number, since it uses as much as digits as its factorization.

2143432205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872495.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2143432205 is about 46297.2159530138. The cubic root of 2143432205 is about 1289.3473061760.

Adding to 2143432205 its reverse (5022343412), we get a palindrome (7165775617).

The spelling of 2143432205 in words is "two billion, one hundred forty-three million, four hundred thirty-two thousand, two hundred five".