11523541 has 4 divisors (see below), whose sum is σ = 11556000. Its totient is φ = 11491084.

The previous prime is 11523497. The next prime is 11523553. The reversal of 11523541 is 14532511.

It is a happy number.

11523541 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 Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11523541 - 2¹¹ = 11521493 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 (11523581) 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, 15691 + ... + 16408.

It is an arithmetic number, because the mean of its divisors is an integer number (2889000).

Almost surely, 2^11523541 is an apocalyptic number.

It is an amenable number.

11523541 is a deficient number, since it is larger than the sum of its proper divisors (32459).

11523541 is an equidigital number, since it uses as much as digits as its factorization.

11523541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32458.

The product of its digits is 600, while the sum is 22.

The square root of 11523541 is about 3394.6341481815. The cubic root of 11523541 is about 225.8717848983.

The spelling of 11523541 in words is "eleven million, five hundred twenty-three thousand, five hundred forty-one".