545049 has 12 divisors (see below), whose sum is σ = 816816. Its totient is φ = 363204.

The previous prime is 545033. The next prime is 545057. The reversal of 545049 is 940545.

It is not a de Polignac number, because 545049 - 2⁴ = 545033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545029) 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 11 ways as a sum of consecutive naturals, for example, 879 + ... + 1364.

It is an arithmetic number, because the mean of its divisors is an integer number (68068).

2⁵⁴⁵⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

545049 is a deficient number, since it is larger than the sum of its proper divisors (271767).

545049 is an equidigital number, since it uses as much as digits as its factorization.

545049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 545049 is about 738.2743392534. The cubic root of 545049 is about 81.6855396245.

It can be divided in two parts, 5 and 45049, that added together give a palindrome (45054).

The spelling of 545049 in words is "five hundred forty-five thousand, forty-nine".