11803543 has 8 divisors (see below), whose sum is σ = 12130448. Its totient is φ = 11479104.

The previous prime is 11803523. The next prime is 11803549. The reversal of 11803543 is 34530811.

11803543 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11803543 - 2⁵ = 11803511 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 (11803549) 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, 13021 + ... + 13897.

It is an arithmetic number, because the mean of its divisors is an integer number (1516306).

Almost surely, 2^11803543 is an apocalyptic number.

11803543 is a deficient number, since it is larger than the sum of its proper divisors (326905).

11803543 is an equidigital number, since it uses as much as digits as its factorization.

11803543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 11803543 is about 3435.6284723468. The cubic root of 11803543 is about 227.6865948908.

The spelling of 11803543 in words is "eleven million, eight hundred three thousand, five hundred forty-three".