228225271 has 4 divisors (see below), whose sum is σ = 228551544. Its totient is φ = 227899000.

The previous prime is 228225269. The next prime is 228225301. The reversal of 228225271 is 172522822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228225271 - 2¹ = 228225269 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228225071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162085 + ... + 163486.

It is an arithmetic number, because the mean of its divisors is an integer number (57137886).

Almost surely, 2^228225271 is an apocalyptic number.

228225271 is a deficient number, since it is larger than the sum of its proper divisors (326273).

228225271 is an equidigital number, since it uses as much as digits as its factorization.

228225271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326272.

The product of its digits is 8960, while the sum is 31.

The square root of 228225271 is about 15107.1264971205. The cubic root of 228225271 is about 611.1126079657.

The spelling of 228225271 in words is "two hundred twenty-eight million, two hundred twenty-five thousand, two hundred seventy-one".