4545223 has 2 divisors, whose sum is σ = 4545224. Its totient is φ = 4545222.

The previous prime is 4545209. The next prime is 4545241. The reversal of 4545223 is 3225454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4545223 - 2²¹ = 2448071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4545923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2272611 + 2272612.

It is an arithmetic number, because the mean of its divisors is an integer number (2272612).

Almost surely, 2^4545223 is an apocalyptic number.

4545223 is a deficient number, since it is larger than the sum of its proper divisors (1).

4545223 is an equidigital number, since it uses as much as digits as its factorization.

4545223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 25.

The square root of 4545223 is about 2131.9528606421. The cubic root of 4545223 is about 165.6475684447.

The spelling of 4545223 in words is "four million, five hundred forty-five thousand, two hundred twenty-three".