543522541 has 4 divisors (see below), whose sum is σ = 544101084. Its totient is φ = 542944000.

The previous prime is 543522533. The next prime is 543522587. The reversal of 543522541 is 145225345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145225345 = 5 ⋅29045069.

It can be written as a sum of positive squares in 2 ways, for example, as 485320900 + 58201641 = 22030^2 + 7629^2 .

It is a cyclic number.

It is not a de Polignac number, because 543522541 - 2³ = 543522533 is a prime.

It is a super-3 number, since 3×543522541³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543522641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287860 + ... + 289741.

It is an arithmetic number, because the mean of its divisors is an integer number (136025271).

Almost surely, 2^543522541 is an apocalyptic number.

It is an amenable number.

543522541 is a deficient number, since it is larger than the sum of its proper divisors (578543).

543522541 is an equidigital number, since it uses as much as digits as its factorization.

543522541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578542.

The product of its digits is 24000, while the sum is 31.

The square root of 543522541 is about 23313.5698896587. The cubic root of 543522541 is about 816.0921241346.

Adding to 543522541 its reverse (145225345), we get a palindrome (688747886).

The spelling of 543522541 in words is "five hundred forty-three million, five hundred twenty-two thousand, five hundred forty-one".