2144521447 has 2 divisors, whose sum is σ = 2144521448. Its totient is φ = 2144521446.

The previous prime is 2144521409. The next prime is 2144521459. The reversal of 2144521447 is 7441254412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2144521447 - 2²⁷ = 2010303719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144521487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072260723 + 1072260724.

It is an arithmetic number, because the mean of its divisors is an integer number (1072260724).

Almost surely, 2^2144521447 is an apocalyptic number.

2144521447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144521447 is an equidigital number, since it uses as much as digits as its factorization.

2144521447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35840, while the sum is 34.

The square root of 2144521447 is about 46308.9780388209. The cubic root of 2144521447 is about 1289.5656745489.

Adding to 2144521447 its reverse (7441254412), we get a palindrome (9585775859).

The spelling of 2144521447 in words is "two billion, one hundred forty-four million, five hundred twenty-one thousand, four hundred forty-seven".