545743 has 4 divisors (see below), whose sum is σ = 595368. Its totient is φ = 496120.

The previous prime is 545731. The next prime is 545747. The reversal of 545743 is 347545.

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 545743 - 2⁵ = 545711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24796 + ... + 24817.

It is an arithmetic number, because the mean of its divisors is an integer number (148842).

2⁵⁴⁵⁷⁴³ is an apocalyptic number.

545743 is a deficient number, since it is larger than the sum of its proper divisors (49625).

545743 is a wasteful number, since it uses less digits than its factorization.

545743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49624.

The product of its digits is 8400, while the sum is 28.

The square root of 545743 is about 738.7442047150. The cubic root of 545743 is about 81.7201944420.

The spelling of 545743 in words is "five hundred forty-five thousand, seven hundred forty-three".