11148521 has 4 divisors (see below), whose sum is σ = 11155200. Its totient is φ = 11141844.

The previous prime is 11148517. The next prime is 11148523. The reversal of 11148521 is 12584111.

11148521 is digitally balanced in base 2, 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, 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 11148521 - 2² = 11148517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11148523) 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, 1640 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (2788800).

Almost surely, 2^11148521 is an apocalyptic number.

It is an amenable number.

11148521 is a deficient number, since it is larger than the sum of its proper divisors (6679).

11148521 is an equidigital number, since it uses as much as digits as its factorization.

11148521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6678.

The product of its digits is 320, while the sum is 23.

The square root of 11148521 is about 3338.9401012896. The cubic root of 11148521 is about 223.3944702800.

The spelling of 11148521 in words is "eleven million, one hundred forty-eight thousand, five hundred twenty-one".