545723 has 2 divisors, whose sum is σ = 545724. Its totient is φ = 545722.

The previous prime is 545711. The next prime is 545731. The reversal of 545723 is 327545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545723 - 2¹⁰ = 544699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545692 and 545701.

It is not a weakly prime, because it can be changed into another prime (545773) 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 as a sum of consecutive naturals, namely, 272861 + 272862.

It is an arithmetic number, because the mean of its divisors is an integer number (272862).

2⁵⁴⁵⁷²³ is an apocalyptic number.

545723 is a deficient number, since it is larger than the sum of its proper divisors (1).

545723 is an equidigital number, since it uses as much as digits as its factorization.

545723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 26.

The square root of 545723 is about 738.7306681058. The cubic root of 545723 is about 81.7191961553.

The spelling of 545723 in words is "five hundred forty-five thousand, seven hundred twenty-three".