2127289 has 2 divisors, whose sum is σ = 2127290. Its totient is φ = 2127288.

The previous prime is 2127287. The next prime is 2127299. The reversal of 2127289 is 9827212.

2127289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 110889 = 1420^2 + 333^2 .

It is a cyclic number.

It is not a de Polignac number, because 2127289 - 2¹ = 2127287 is a prime.

Together with 2127287, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2127289.

It is not a weakly prime, because it can be changed into another prime (2127287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063644 + 1063645.

It is an arithmetic number, because the mean of its divisors is an integer number (1063645).

2^2127289 is an apocalyptic number.

It is an amenable number.

2127289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2127289 is an equidigital number, since it uses as much as digits as its factorization.

2127289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 2127289 is about 1458.5228829196. The cubic root of 2127289 is about 128.6102250351.

The spelling of 2127289 in words is "two million, one hundred twenty-seven thousand, two hundred eighty-nine".