545339 has 4 divisors (see below), whose sum is σ = 546840. Its totient is φ = 543840.

The previous prime is 545329. The next prime is 545371. The reversal of 545339 is 933545.

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: 933545 = 5 ⋅186709.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545339 is a prime.

It is a Duffinian number.

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, 179 + ... + 1059.

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

2⁵⁴⁵³³⁹ is an apocalyptic number.

545339 is a deficient number, since it is larger than the sum of its proper divisors (1501).

545339 is an equidigital number, since it uses as much as digits as its factorization.

545339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500.

The product of its digits is 8100, while the sum is 29.

The square root of 545339 is about 738.4707170904. The cubic root of 545339 is about 81.7000243200.

The spelling of 545339 in words is "five hundred forty-five thousand, three hundred thirty-nine".