541205543 has 4 divisors (see below), whose sum is σ = 541526160. Its totient is φ = 540884928.

The previous prime is 541205527. The next prime is 541205551. The reversal of 541205543 is 345502145.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 541205543 - 2⁴ = 541205527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541205503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157763 + ... + 161156.

It is an arithmetic number, because the mean of its divisors is an integer number (135381540).

Almost surely, 2^541205543 is an apocalyptic number.

541205543 is a deficient number, since it is larger than the sum of its proper divisors (320617).

541205543 is a wasteful number, since it uses less digits than its factorization.

541205543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320616.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 541205543 is about 23263.8247715203. The cubic root of 541205543 is about 814.9308247961.

Adding to 541205543 its reverse (345502145), we get a palindrome (886707688).

The spelling of 541205543 in words is "five hundred forty-one million, two hundred five thousand, five hundred forty-three".