228333065 has 8 divisors (see below), whose sum is σ = 278491848. Its totient is φ = 179671680.

The previous prime is 228333041. The next prime is 228333067. The reversal of 228333065 is 560333822.

It can be written as a sum of positive squares in 4 ways, for example, as 1408969 + 226924096 = 1187^2 + 15064^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228333065 - 2²⁰ = 227284489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228333067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374012 + ... + 374621.

It is an arithmetic number, because the mean of its divisors is an integer number (34811481).

Almost surely, 2^228333065 is an apocalyptic number.

It is an amenable number.

228333065 is a deficient number, since it is larger than the sum of its proper divisors (50158783).

228333065 is an equidigital number, since it uses as much as digits as its factorization.

228333065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748699.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 228333065 is about 15110.6937299384. The cubic root of 228333065 is about 611.2088051773.

Adding to 228333065 its reverse (560333822), we get a palindrome (788666887).

The spelling of 228333065 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, sixty-five".