228313271 has 2 divisors, whose sum is σ = 228313272. Its totient is φ = 228313270.

The previous prime is 228313243. The next prime is 228313277. The reversal of 228313271 is 172313822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228313271 - 2¹⁰ = 228312247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228313277) 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 as a sum of consecutive naturals, namely, 114156635 + 114156636.

It is an arithmetic number, because the mean of its divisors is an integer number (114156636).

Almost surely, 2^228313271 is an apocalyptic number.

228313271 is a deficient number, since it is larger than the sum of its proper divisors (1).

228313271 is an equidigital number, since it uses as much as digits as its factorization.

228313271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 228313271 is about 15110.0387491230. The cubic root of 228313271 is about 611.1911429424.

The spelling of 228313271 in words is "two hundred twenty-eight million, three hundred thirteen thousand, two hundred seventy-one".