12041543 has 4 divisors (see below), whose sum is σ = 12051120. Its totient is φ = 12031968.

The previous prime is 12041527. The next prime is 12041551. The reversal of 12041543 is 34514021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12041543 - 2⁴ = 12041527 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 (12041503) 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, 2555 + ... + 5532.

It is an arithmetic number, because the mean of its divisors is an integer number (3012780).

Almost surely, 2^12041543 is an apocalyptic number.

12041543 is a deficient number, since it is larger than the sum of its proper divisors (9577).

12041543 is an equidigital number, since it uses as much as digits as its factorization.

12041543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12041543 is about 3470.0926500599. The cubic root of 12041543 is about 229.2067379112.

Adding to 12041543 its reverse (34514021), we get a palindrome (46555564).

The spelling of 12041543 in words is "twelve million, forty-one thousand, five hundred forty-three".