228132271 has 2 divisors, whose sum is σ = 228132272. Its totient is φ = 228132270.

The previous prime is 228132217. The next prime is 228132283. The reversal of 228132271 is 172231822.

Together with previous prime (228132217) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228132271 - 2²³ = 219743663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228132211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114066135 + 114066136.

It is an arithmetic number, because the mean of its divisors is an integer number (114066136).

Almost surely, 2^228132271 is an apocalyptic number.

228132271 is a deficient number, since it is larger than the sum of its proper divisors (1).

228132271 is an equidigital number, since it uses as much as digits as its factorization.

228132271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 228132271 is about 15104.0481659719. The cubic root of 228132271 is about 611.0295888303.

The spelling of 228132271 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, two hundred seventy-one".