545293 has 4 divisors (see below), whose sum is σ = 623200. Its totient is φ = 467388.

The previous prime is 545291. The next prime is 545329. The reversal of 545293 is 392545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 392545 = 5 ⋅78509.

It is a cyclic number.

It is not a de Polignac number, because 545293 - 2¹ = 545291 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 (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, 38943 + ... + 38956.

It is an arithmetic number, because the mean of its divisors is an integer number (155800).

2⁵⁴⁵²⁹³ is an apocalyptic number.

It is an amenable number.

545293 is a deficient number, since it is larger than the sum of its proper divisors (77907).

545293 is an equidigital number, since it uses as much as digits as its factorization.

545293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77906.

The product of its digits is 5400, while the sum is 28.

The square root of 545293 is about 738.4395709874. The cubic root of 545293 is about 81.6977270903.

It can be divided in two parts, 545 and 293, that added together give a palindrome (838).

The spelling of 545293 in words is "five hundred forty-five thousand, two hundred ninety-three".