227189 has 2 divisors, whose sum is σ = 227190. Its totient is φ = 227188.

The previous prime is 227177. The next prime is 227191. The reversal of 227189 is 981722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207025 + 20164 = 455^2 + 142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227189 is a prime.

It is a super-2 number, since 2×227189² = 103229683442, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 227191, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227159) 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, 113594 + 113595.

It is an arithmetic number, because the mean of its divisors is an integer number (113595).

2²²⁷¹⁸⁹ is an apocalyptic number.

It is an amenable number.

227189 is a deficient number, since it is larger than the sum of its proper divisors (1).

227189 is an equidigital number, since it uses as much as digits as its factorization.

227189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 227189 is about 476.6434726292. The cubic root of 227189 is about 61.0186272953.

The spelling of 227189 in words is "two hundred twenty-seven thousand, one hundred eighty-nine".