223930545 has 16 divisors (see below), whose sum is σ = 379365120. Its totient is φ = 112404224.

The previous prime is 223930481. The next prime is 223930571. The reversal of 223930545 is 545039322.

223930545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 223930545 - 2⁶ = 223930481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438825 + ... + 439334.

It is an arithmetic number, because the mean of its divisors is an integer number (23710320).

Almost surely, 2^223930545 is an apocalyptic number.

It is an amenable number.

223930545 is a deficient number, since it is larger than the sum of its proper divisors (155434575).

223930545 is a wasteful number, since it uses less digits than its factorization.

223930545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878184.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 223930545 is about 14964.3090385089. The cubic root of 223930545 is about 607.2550181581.

Adding to 223930545 its reverse (545039322), we get a palindrome (768969867).

The spelling of 223930545 in words is "two hundred twenty-three million, nine hundred thirty thousand, five hundred forty-five".