4143144221 has 4 divisors (see below), whose sum is σ = 4151652192. Its totient is φ = 4134636252.

The previous prime is 4143144211. The next prime is 4143144223. The reversal of 4143144221 is 1224413414.

4143144221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4143144221 - 2⁶ = 4143144157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143144223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4253255 + ... + 4254228.

It is an arithmetic number, because the mean of its divisors is an integer number (1037913048).

Almost surely, 2^4143144221 is an apocalyptic number.

It is an amenable number.

4143144221 is a deficient number, since it is larger than the sum of its proper divisors (8507971).

4143144221 is an equidigital number, since it uses as much as digits as its factorization.

4143144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8507970.

The product of its digits is 3072, while the sum is 26.

The square root of 4143144221 is about 64367.2604745611. The cubic root of 4143144221 is about 1606.1151686124.

Adding to 4143144221 its reverse (1224413414), we get a palindrome (5367557635).

The spelling of 4143144221 in words is "four billion, one hundred forty-three million, one hundred forty-four thousand, two hundred twenty-one".