223520045 has 16 divisors (see below), whose sum is σ = 307646208. Its totient is φ = 152718720.

The previous prime is 223520041. The next prime is 223520053. The reversal of 223520045 is 540025322.

223520045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223520045 - 2² = 223520041 is a prime.

It is a super-2 number, since 2×223520045² = 99922421033604050, which contains 22 as substring.

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 223520045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223520041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1529 + ... + 21198.

It is an arithmetic number, because the mean of its divisors is an integer number (19227888).

Almost surely, 2^223520045 is an apocalyptic number.

It is an amenable number.

223520045 is a deficient number, since it is larger than the sum of its proper divisors (84126163).

223520045 is a wasteful number, since it uses less digits than its factorization.

223520045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23020.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 223520045 is about 14950.5867777823. The cubic root of 223520045 is about 606.8837264520.

Adding to 223520045 its reverse (540025322), we get a palindrome (763545367).

The spelling of 223520045 in words is "two hundred twenty-three million, five hundred twenty thousand, forty-five".