545373 has 10 divisors (see below), whose sum is σ = 814814. Its totient is φ = 363528.

The previous prime is 545371. The next prime is 545387. The reversal of 545373 is 373545.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 544644 + 729 = 738^2 + 27^2 .

It is not a de Polignac number, because 545373 - 2¹ = 545371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545371) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3286 + ... + 3447.

2⁵⁴⁵³⁷³ is an apocalyptic number.

It is an amenable number.

545373 is a deficient number, since it is larger than the sum of its proper divisors (269441).

545373 is an equidigital number, since it uses as much as digits as its factorization.

545373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6745 (or 6736 counting only the distinct ones).

The product of its digits is 6300, while the sum is 27.

The square root of 545373 is about 738.4937372788. The cubic root of 545373 is about 81.7017221893.

The spelling of 545373 in words is "five hundred forty-five thousand, three hundred seventy-three".