545622323 has 2 divisors, whose sum is σ = 545622324. Its totient is φ = 545622322.

The previous prime is 545622317. The next prime is 545622349. The reversal of 545622323 is 323226545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545622323 - 2¹⁰ = 545621299 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545622323.

It is not a weakly prime, because it can be changed into another prime (545622223) 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 as a sum of consecutive naturals, namely, 272811161 + 272811162.

It is an arithmetic number, because the mean of its divisors is an integer number (272811162).

Almost surely, 2^545622323 is an apocalyptic number.

545622323 is a deficient number, since it is larger than the sum of its proper divisors (1).

545622323 is an equidigital number, since it uses as much as digits as its factorization.

545622323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 32.

The square root of 545622323 is about 23358.5599513326. The cubic root of 545622323 is about 817.1417055961.

Adding to 545622323 its reverse (323226545), we get a palindrome (868848868).

The spelling of 545622323 in words is "five hundred forty-five million, six hundred twenty-two thousand, three hundred twenty-three".