543245 has 4 divisors (see below), whose sum is σ = 651900. Its totient is φ = 434592.

The previous prime is 543241. The next prime is 543253. The reversal of 543245 is 542345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 244036 + 299209 = 494^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 543245 - 2² = 543241 is a prime.

It is a d-powerful number, because it can be written as 5 + 4⁴ + 2¹⁹ + 3⁷ + 4⁷ + 5³ .

It is a self number, because there is not a number n which added to its sum of digits gives 543245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543241) 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, 54320 + ... + 54329.

It is an arithmetic number, because the mean of its divisors is an integer number (162975).

2⁵⁴³²⁴⁵ is an apocalyptic number.

It is an amenable number.

543245 is a deficient number, since it is larger than the sum of its proper divisors (108655).

543245 is a wasteful number, since it uses less digits than its factorization.

543245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108654.

The product of its digits is 2400, while the sum is 23.

The square root of 543245 is about 737.0515585765. The cubic root of 543245 is about 81.5953192400.

Subtracting from 543245 its reverse (542345), we obtain a square (900 = 30²).

It can be divided in two parts, 5 and 43245, that multiplied together give a square (216225 = 465²).

The spelling of 543245 in words is "five hundred forty-three thousand, two hundred forty-five".