11524543 has 4 divisors (see below), whose sum is σ = 11531520. Its totient is φ = 11517568.

The previous prime is 11524519. The next prime is 11524549. The reversal of 11524543 is 34542511.

It is a happy number.

11524543 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11524543 - 2⁵ = 11524511 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 (11524549) 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, 543 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^11524543 is an apocalyptic number.

11524543 is a deficient number, since it is larger than the sum of its proper divisors (6977).

11524543 is an equidigital number, since it uses as much as digits as its factorization.

11524543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6976.

The product of its digits is 2400, while the sum is 25.

The square root of 11524543 is about 3394.7817308334. The cubic root of 11524543 is about 225.8783314094.

The spelling of 11524543 in words is "eleven million, five hundred twenty-four thousand, five hundred forty-three".