545306 has 8 divisors (see below), whose sum is σ = 840180. Its totient is φ = 265248.

The previous prime is 545291. The next prime is 545329. The reversal of 545306 is 603545.

It can be written as a sum of positive squares in 2 ways, for example, as 429025 + 116281 = 655^2 + 341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a zygodrome in base 5.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611 + ... + 3758.

2⁵⁴⁵³⁰⁶ is an apocalyptic number.

545306 is a deficient number, since it is larger than the sum of its proper divisors (294874).

545306 is a wasteful number, since it uses less digits than its factorization.

545306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 545306 is about 738.4483732801. The cubic root of 545306 is about 81.6983763205.

The spelling of 545306 in words is "five hundred forty-five thousand, three hundred six".