2189122927 has 2 divisors, whose sum is σ = 2189122928. Its totient is φ = 2189122926.

The previous prime is 2189122889. The next prime is 2189122931. The reversal of 2189122927 is 7292219812.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2189122927 - 2¹⁹ = 2188598639 is a prime.

It is a super-3 number, since 3×2189122927³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2189122937) 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, 1094561463 + 1094561464.

It is an arithmetic number, because the mean of its divisors is an integer number (1094561464).

Almost surely, 2^2189122927 is an apocalyptic number.

2189122927 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189122927 is an equidigital number, since it uses as much as digits as its factorization.

2189122927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 2189122927 is about 46788.0639372907. The cubic root of 2189122927 is about 1298.4444761561. Note that the first 4 decimals are identical.

The spelling of 2189122927 in words is "two billion, one hundred eighty-nine million, one hundred twenty-two thousand, nine hundred twenty-seven".