223630045 has 4 divisors (see below), whose sum is σ = 268356060. Its totient is φ = 178904032.

The previous prime is 223630009. The next prime is 223630073. The reversal of 223630045 is 540036322.

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 126765081 + 96864964 = 11259^2 + 9842^2 .

It is a cyclic number.

It is not a de Polignac number, because 223630045 - 2¹⁷ = 223498973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22363000 + ... + 22363009.

It is an arithmetic number, because the mean of its divisors is an integer number (67089015).

Almost surely, 2^223630045 is an apocalyptic number.

It is an amenable number.

223630045 is a deficient number, since it is larger than the sum of its proper divisors (44726015).

223630045 is an equidigital number, since it uses as much as digits as its factorization.

223630045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44726014.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 223630045 is about 14954.2651106632. The cubic root of 223630045 is about 606.9832645223.

Adding to 223630045 its reverse (540036322), we get a palindrome (763666367).

The spelling of 223630045 in words is "two hundred twenty-three million, six hundred thirty thousand, forty-five".