223325240329 has 3 divisors (see below), whose sum is σ = 223325712903. Its totient is φ = 223324767756.

The previous prime is 223325240317. The next prime is 223325240377. The reversal of 223325240329 is 923042523322.

The square root of 223325240329 is 472573.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 211972764025 + 11352476304 = 460405^2 + 106548^2 .

It is not a de Polignac number, because 223325240329 - 2⁹ = 223325239817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223325240309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 236287 + ... + 708859.

It is an arithmetic number, because the mean of its divisors is an integer number (74441904301).

Almost surely, 2^223325240329 is an apocalyptic number.

223325240329 is the 472573-rd square number.

223325240329 is the 236287-th centered octagonal number.

It is an amenable number.

223325240329 is a deficient number, since it is larger than the sum of its proper divisors (472574).

223325240329 is an frugal number, since it uses more digits than its factorization.

223325240329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945146 (or 472573 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 223325240329 in words is "two hundred twenty-three billion, three hundred twenty-five million, two hundred forty thousand, three hundred twenty-nine".