223522145 has 16 divisors (see below), whose sum is σ = 334412928. Its totient is φ = 139338240.

The previous prime is 223522109. The next prime is 223522151. The reversal of 223522145 is 541225322.

223522145 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 223522145 - 2⁶ = 223522081 is a prime.

It is a Duffinian 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, 289904 + ... + 290673.

It is an arithmetic number, because the mean of its divisors is an integer number (20900808).

Almost surely, 2^223522145 is an apocalyptic number.

It is an amenable number.

223522145 is a deficient number, since it is larger than the sum of its proper divisors (110890783).

223522145 is a wasteful number, since it uses less digits than its factorization.

223522145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580600.

The product of its digits is 4800, while the sum is 26.

The square root of 223522145 is about 14950.6570089746. The cubic root of 223522145 is about 606.8856270299.

Adding to 223522145 its reverse (541225322), we get a palindrome (764747467).

The spelling of 223522145 in words is "two hundred twenty-three million, five hundred twenty-two thousand, one hundred forty-five".