545299 has 4 divisors (see below), whose sum is σ = 550800. Its totient is φ = 539800.

The previous prime is 545291. The next prime is 545329. The reversal of 545299 is 992545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545299 - 2³ = 545291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545291) by changing a digit.

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, 2599 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

2⁵⁴⁵²⁹⁹ is an apocalyptic number.

545299 is a deficient number, since it is larger than the sum of its proper divisors (5501).

545299 is a wasteful number, since it uses less digits than its factorization.

545299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500.

The product of its digits is 16200, while the sum is 34.

The square root of 545299 is about 738.4436335970. The cubic root of 545299 is about 81.6980267363.

It can be divided in two parts, 54 and 5299, that multiplied together give a triangular number (286146 = T₇₅₆).

The spelling of 545299 in words is "five hundred forty-five thousand, two hundred ninety-nine".