223730233 has 4 divisors (see below), whose sum is σ = 224526708. Its totient is φ = 222933760.

The previous prime is 223730201. The next prime is 223730237. The reversal of 223730233 is 332037322.

It is a happy number.

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 200420649 + 23309584 = 14157^2 + 4828^2 .

It is a cyclic number.

It is not a de Polignac number, because 223730233 - 2⁵ = 223730201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223730198 and 223730207.

It is not an unprimeable number, because it can be changed into a prime (223730237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397816 + ... + 398377.

It is an arithmetic number, because the mean of its divisors is an integer number (56131677).

Almost surely, 2^223730233 is an apocalyptic number.

It is an amenable number.

223730233 is a deficient number, since it is larger than the sum of its proper divisors (796475).

223730233 is an equidigital number, since it uses as much as digits as its factorization.

223730233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796474.

The product of its (nonzero) digits is 4536, while the sum is 25.

The square root of 223730233 is about 14957.6145491185. The cubic root of 223730233 is about 607.0738953975.

Adding to 223730233 its reverse (332037322), we get a palindrome (555767555).

The spelling of 223730233 in words is "two hundred twenty-three million, seven hundred thirty thousand, two hundred thirty-three".