545247 has 12 divisors (see below), whose sum is σ = 804960. Its totient is φ = 355488.

The previous prime is 545239. The next prime is 545257. The reversal of 545247 is 742545.

It is not a de Polignac number, because 545247 - 2³ = 545239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545247.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545247.

It is not an unprimeable number, because it can be changed into a prime (545257) 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 11 ways as a sum of consecutive naturals, for example, 222 + ... + 1067.

It is an arithmetic number, because the mean of its divisors is an integer number (67080).

2⁵⁴⁵²⁴⁷ is an apocalyptic number.

545247 is a deficient number, since it is larger than the sum of its proper divisors (259713).

545247 is a wasteful number, since it uses less digits than its factorization.

545247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1339 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 545247 is about 738.4084235706. The cubic root of 545247 is about 81.6954297315.

The spelling of 545247 in words is "five hundred forty-five thousand, two hundred forty-seven".