228133267 has 2 divisors, whose sum is σ = 228133268. Its totient is φ = 228133266.

The previous prime is 228133223. The next prime is 228133303. The reversal of 228133267 is 762331822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228133267 is a prime.

It is not a weakly prime, because it can be changed into another prime (228130267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114066633 + 114066634.

It is an arithmetic number, because the mean of its divisors is an integer number (114066634).

Almost surely, 2^228133267 is an apocalyptic number.

228133267 is a deficient number, since it is larger than the sum of its proper divisors (1).

228133267 is an equidigital number, since it uses as much as digits as its factorization.

228133267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 228133267 is about 15104.0811372291. The cubic root of 228133267 is about 611.0304780580.

The spelling of 228133267 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, two hundred sixty-seven".