411115543 has 4 divisors (see below), whose sum is σ = 411431400. Its totient is φ = 410799688.

The previous prime is 411115499. The next prime is 411115577. The reversal of 411115543 is 345511114.

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 411115543 - 2⁹ = 411115031 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 (411115043) 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, 155968 + ... + 158581.

It is an arithmetic number, because the mean of its divisors is an integer number (102857850).

Almost surely, 2^411115543 is an apocalyptic number.

411115543 is a deficient number, since it is larger than the sum of its proper divisors (315857).

411115543 is a wasteful number, since it uses less digits than its factorization.

411115543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315856.

The product of its digits is 1200, while the sum is 25.

The square root of 411115543 is about 20275.9843904063. The cubic root of 411115543 is about 743.5690400977.

Adding to 411115543 its reverse (345511114), we get a palindrome (756626657).

The spelling of 411115543 in words is "four hundred eleven million, one hundred fifteen thousand, five hundred forty-three".