2188271 has 2 divisors, whose sum is σ = 2188272. Its totient is φ = 2188270.

The previous prime is 2188267. The next prime is 2188279. The reversal of 2188271 is 1728812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2188271 - 2² = 2188267 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2188279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094135 + 1094136.

It is an arithmetic number, because the mean of its divisors is an integer number (1094136).

2^2188271 is an apocalyptic number.

2188271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2188271 is an equidigital number, since it uses as much as digits as its factorization.

2188271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 29.

The square root of 2188271 is about 1479.2805683845. The cubic root of 2188271 is about 129.8276018518.

The spelling of 2188271 in words is "two million, one hundred eighty-eight thousand, two hundred seventy-one".