2144521129 has 2 divisors, whose sum is σ = 2144521130. Its totient is φ = 2144521128.

The previous prime is 2144521103. The next prime is 2144521157. The reversal of 2144521129 is 9211254412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2068430400 + 76090729 = 45480^2 + 8723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144521129 - 2¹¹ = 2144519081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2144521129.

It is not a weakly prime, because it can be changed into another prime (2144521189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072260564 + 1072260565.

It is an arithmetic number, because the mean of its divisors is an integer number (1072260565).

Almost surely, 2^2144521129 is an apocalyptic number.

It is an amenable number.

2144521129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144521129 is an equidigital number, since it uses as much as digits as its factorization.

2144521129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 2144521129 is about 46308.9746053613. The cubic root of 2144521129 is about 1289.5656108079.

The spelling of 2144521129 in words is "two billion, one hundred forty-four million, five hundred twenty-one thousand, one hundred twenty-nine".