545323 has 4 divisors (see below), whose sum is σ = 546840. Its totient is φ = 543808.

The previous prime is 545291. The next prime is 545329. The reversal of 545323 is 323545.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 323545 = 5 ⋅64709.

It is a cyclic number.

It is not a de Polignac number, because 545323 - 2⁵ = 545291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545294 and 545303.

It is not an unprimeable number, because it can be changed into a prime (545329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123 + ... + 1051.

It is an arithmetic number, because the mean of its divisors is an integer number (136710).

2⁵⁴⁵³²³ is an apocalyptic number.

545323 is a deficient number, since it is larger than the sum of its proper divisors (1517).

545323 is an equidigital number, since it uses as much as digits as its factorization.

545323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516.

The product of its digits is 1800, while the sum is 22.

The square root of 545323 is about 738.4598838122. The cubic root of 545323 is about 81.6992252982.

Adding to 545323 its reverse (323545), we get a palindrome (868868).

It can be divided in two parts, 5453 and 23, that added together give a square (5476 = 74²).

The spelling of 545323 in words is "five hundred forty-five thousand, three hundred twenty-three".