223445345 has 16 divisors (see below), whose sum is σ = 280748160. Its totient is φ = 170400384.

The previous prime is 223445333. The next prime is 223445347. The reversal of 223445345 is 543544322.

It is a cyclic number.

It is not a de Polignac number, because 223445345 - 2¹⁰ = 223444321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223445347) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32141 + ... + 38469.

It is an arithmetic number, because the mean of its divisors is an integer number (17546760).

Almost surely, 2^223445345 is an apocalyptic number.

It is an amenable number.

223445345 is a deficient number, since it is larger than the sum of its proper divisors (57302815).

223445345 is a wasteful number, since it uses less digits than its factorization.

223445345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664.

The product of its digits is 57600, while the sum is 32.

The square root of 223445345 is about 14948.0883393162. The cubic root of 223445345 is about 606.8161124333.

Adding to 223445345 its reverse (543544322), we get a palindrome (766989667).

The spelling of 223445345 in words is "two hundred twenty-three million, four hundred forty-five thousand, three hundred forty-five".