223228069 has 4 divisors (see below), whose sum is σ = 223467244. Its totient is φ = 222988896.

The previous prime is 223228063. The next prime is 223228073. The reversal of 223228069 is 960822322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61811044 + 161417025 = 7862^2 + 12705^2 .

It is a cyclic number.

It is not a de Polignac number, because 223228069 - 2¹⁹ = 222703781 is a prime.

It is a super-3 number, since 3×223228069³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223228063) 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 in 3 ways as a sum of consecutive naturals, for example, 118182 + ... + 120055.

It is an arithmetic number, because the mean of its divisors is an integer number (55866811).

Almost surely, 2^223228069 is an apocalyptic number.

It is an amenable number.

223228069 is a deficient number, since it is larger than the sum of its proper divisors (239175).

223228069 is an equidigital number, since it uses as much as digits as its factorization.

223228069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239174.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 223228069 is about 14940.8188865269. The cubic root of 223228069 is about 606.6193613572.

The spelling of 223228069 in words is "two hundred twenty-three million, two hundred twenty-eight thousand, sixty-nine".