545268 has 12 divisors (see below), whose sum is σ = 1272320. Its totient is φ = 181752.

The previous prime is 545267. The next prime is 545291. The reversal of 545268 is 862545.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545267) 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, 22708 + ... + 22731.

2⁵⁴⁵²⁶⁸ is an apocalyptic number.

It is an amenable number.

545268 is an abundant number, since it is smaller than the sum of its proper divisors (727052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545268 is a wasteful number, since it uses less digits than its factorization.

545268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45446 (or 45444 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 545268 is about 738.4226432064. The cubic root of 545268 is about 81.6964785418.

The spelling of 545268 in words is "five hundred forty-five thousand, two hundred sixty-eight".