11241521 has 4 divisors (see below), whose sum is σ = 11833200. Its totient is φ = 10649844.

The previous prime is 11241511. The next prime is 11241541. The reversal of 11241521 is 12514211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12514211 = 61 ⋅205151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11241521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11241521.

It is not an unprimeable number, because it can be changed into a prime (11241511) 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, 295811 + ... + 295848.

It is an arithmetic number, because the mean of its divisors is an integer number (2958300).

Almost surely, 2^11241521 is an apocalyptic number.

It is an amenable number.

11241521 is a deficient number, since it is larger than the sum of its proper divisors (591679).

11241521 is an equidigital number, since it uses as much as digits as its factorization.

11241521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591678.

The product of its digits is 80, while the sum is 17.

The square root of 11241521 is about 3352.8377533069. The cubic root of 11241521 is about 224.0139300967.

Adding to 11241521 its reverse (12514211), we get a palindrome (23755732).

The spelling of 11241521 in words is "eleven million, two hundred forty-one thousand, five hundred twenty-one".