223020045 has 24 divisors (see below), whose sum is σ = 399040512. Its totient is φ = 115106400.

The previous prime is 223020013. The next prime is 223020089. The reversal of 223020045 is 540020322.

It is not a de Polignac number, because 223020045 - 2⁵ = 223020013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78541 + ... + 81330.

It is an arithmetic number, because the mean of its divisors is an integer number (16626688).

Almost surely, 2^223020045 is an apocalyptic number.

It is an amenable number.

223020045 is a deficient number, since it is larger than the sum of its proper divisors (176020467).

223020045 is a wasteful number, since it uses less digits than its factorization.

223020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159913 (or 159910 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 223020045 is about 14933.8556642282. The cubic root of 223020045 is about 606.4308686261.

Adding to 223020045 its reverse (540020322), we get a palindrome (763040367).

The spelling of 223020045 in words is "two hundred twenty-three million, twenty thousand, forty-five".