11243541 has 4 divisors (see below), whose sum is σ = 14991392. Its totient is φ = 7495692.

The previous prime is 11243509. The next prime is 11243563. The reversal of 11243541 is 14534211.

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 not a de Polignac number, because 11243541 - 2⁵ = 11243509 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 (11243641) 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, 1873921 + ... + 1873926.

It is an arithmetic number, because the mean of its divisors is an integer number (3747848).

Almost surely, 2^11243541 is an apocalyptic number.

It is an amenable number.

11243541 is a deficient number, since it is larger than the sum of its proper divisors (3747851).

11243541 is an equidigital number, since it uses as much as digits as its factorization.

11243541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747850.

The product of its digits is 480, while the sum is 21.

The square root of 11243541 is about 3353.1389771377. The cubic root of 11243541 is about 224.0273470545.

Adding to 11243541 its reverse (14534211), we get a palindrome (25777752).

The spelling of 11243541 in words is "eleven million, two hundred forty-three thousand, five hundred forty-one".