545043 has 8 divisors (see below), whose sum is σ = 734608. Its totient is φ = 359424.

The previous prime is 545033. The next prime is 545057. The reversal of 545043 is 340545.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545043 - 2⁶ = 544979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545023) 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 7 ways as a sum of consecutive naturals, for example, 646 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (91826).

2⁵⁴⁵⁰⁴³ is an apocalyptic number.

545043 is a deficient number, since it is larger than the sum of its proper divisors (189565).

545043 is a wasteful number, since it uses less digits than its factorization.

545043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 545043 is about 738.2702757121. The cubic root of 545043 is about 81.6852398869.

Adding to 545043 its reverse (340545), we get a palindrome (885588).

The spelling of 545043 in words is "five hundred forty-five thousand, forty-three".