543505345 has 8 divisors (see below), whose sum is σ = 663261120. Its totient is φ = 427434480.

The previous prime is 543505309. The next prime is 543505349.

543505345 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 543505345 - 2¹⁹ = 542981057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 543505345.

It is not an unprimeable number, because it can be changed into a prime (543505349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920901 + ... + 921490.

It is an arithmetic number, because the mean of its divisors is an integer number (82907640).

Almost surely, 2^543505345 is an apocalyptic number.

It is an amenable number.

543505345 is a deficient number, since it is larger than the sum of its proper divisors (119755775).

543505345 is a wasteful number, since it uses less digits than its factorization.

543505345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842455.

The product of its (nonzero) digits is 90000, while the sum is 34.

The square root of 543505345 is about 23313.2010886536. The cubic root of 543505345 is about 816.0835175194.

Adding to 543505345 its product of nonzero digits (90000), we get a palindrome (543595345).

It can be divided in two parts, 54350 and 5345, that added together give a palindrome (59695).

The spelling of 543505345 in words is "five hundred forty-three million, five hundred five thousand, three hundred forty-five".