228271 has 8 divisors (see below), whose sum is σ = 239760. Its totient is φ = 217152.

The previous prime is 228257. The next prime is 228281. The reversal of 228271 is 172822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228271 is a prime.

It is a Duffinian number.

228271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3091 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (29970).

2²²⁸²⁷¹ is an apocalyptic number.

228271 is a deficient number, since it is larger than the sum of its proper divisors (11489).

228271 is an equidigital number, since it uses as much as digits as its factorization.

228271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185.

The product of its digits is 448, while the sum is 22.

The square root of 228271 is about 477.7771447024. Note that the first 3 decimals coincide. The cubic root of 228271 is about 61.1153421007.

The spelling of 228271 in words is "two hundred twenty-eight thousand, two hundred seventy-one".