228333263 has 2 divisors, whose sum is σ = 228333264. Its totient is φ = 228333262.

The previous prime is 228333257. The next prime is 228333283. The reversal of 228333263 is 362333822.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228333263 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228333233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114166631 + 114166632.

It is an arithmetic number, because the mean of its divisors is an integer number (114166632).

Almost surely, 2^228333263 is an apocalyptic number.

228333263 is a deficient number, since it is larger than the sum of its proper divisors (1).

228333263 is an equidigital number, since it uses as much as digits as its factorization.

228333263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 32.

The square root of 228333263 is about 15110.7002815885. The cubic root of 228333263 is about 611.2089818481.

The spelling of 228333263 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, two hundred sixty-three".