223012445 has 8 divisors (see below), whose sum is σ = 271281336. Its totient is φ = 175965696.

The previous prime is 223012417. The next prime is 223012457. The reversal of 223012445 is 544210322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17956 + 222994489 = 134^2 + 14933^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 223012445 - 2⁸ = 223012189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223012445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305132 + ... + 305861.

It is an arithmetic number, because the mean of its divisors is an integer number (33910167).

Almost surely, 2^223012445 is an apocalyptic number.

It is an amenable number.

223012445 is a deficient number, since it is larger than the sum of its proper divisors (48268891).

223012445 is an equidigital number, since it uses as much as digits as its factorization.

223012445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611071.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 223012445 is about 14933.6012066748. The cubic root of 223012445 is about 606.4239799674.

Adding to 223012445 its reverse (544210322), we get a palindrome (767222767).

The spelling of 223012445 in words is "two hundred twenty-three million, twelve thousand, four hundred forty-five".