2141444209 has 2 divisors, whose sum is σ = 2141444210. Its totient is φ = 2141444208.

The previous prime is 2141444197. The next prime is 2141444243. The reversal of 2141444209 is 9024441412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1689456609 + 451987600 = 41103^2 + 21260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141444209 - 2⁵ = 2141444177 is a prime.

It is not a weakly prime, because it can be changed into another prime (2141448209) by changing a digit.

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 as a sum of consecutive naturals, namely, 1070722104 + 1070722105.

It is an arithmetic number, because the mean of its divisors is an integer number (1070722105).

Almost surely, 2^2141444209 is an apocalyptic number.

It is an amenable number.

2141444209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141444209 is an equidigital number, since it uses as much as digits as its factorization.

2141444209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2141444209 is about 46275.7410421486. The cubic root of 2141444209 is about 1288.9485671604.

The spelling of 2141444209 in words is "two billion, one hundred forty-one million, four hundred forty-four thousand, two hundred nine".