228533269 has 2 divisors, whose sum is σ = 228533270. Its totient is φ = 228533268.

The previous prime is 228533251. The next prime is 228533281. The reversal of 228533269 is 962335822.

It is a happy number.

228533269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203433169 + 25100100 = 14263^2 + 5010^2 .

It is a cyclic number.

It is not a de Polignac number, because 228533269 - 2⁵ = 228533237 is a prime.

It is a super-2 number, since 2×228533269² = 104454910079652722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228533969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114266634 + 114266635.

It is an arithmetic number, because the mean of its divisors is an integer number (114266635).

Almost surely, 2^228533269 is an apocalyptic number.

It is an amenable number.

228533269 is a deficient number, since it is larger than the sum of its proper divisors (1).

228533269 is an equidigital number, since it uses as much as digits as its factorization.

228533269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 228533269 is about 15117.3168584905. The cubic root of 228533269 is about 611.3873903524.

The spelling of 228533269 in words is "two hundred twenty-eight million, five hundred thirty-three thousand, two hundred sixty-nine".