228162271 has 2 divisors, whose sum is σ = 228162272. Its totient is φ = 228162270.

The previous prime is 228162223. The next prime is 228162293. The reversal of 228162271 is 172261822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228162271 - 2¹¹ = 228160223 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 (228162211) 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, 114081135 + 114081136.

It is an arithmetic number, because the mean of its divisors is an integer number (114081136).

Almost surely, 2^228162271 is an apocalyptic number.

228162271 is a deficient number, since it is larger than the sum of its proper divisors (1).

228162271 is an equidigital number, since it uses as much as digits as its factorization.

228162271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 228162271 is about 15105.0412445647. The cubic root of 228162271 is about 611.0563716614.

The spelling of 228162271 in words is "two hundred twenty-eight million, one hundred sixty-two thousand, two hundred seventy-one".