11126521 has 4 divisors (see below), whose sum is σ = 12716032. Its totient is φ = 9537012.

The previous prime is 11126519. The next prime is 11126537. The reversal of 11126521 is 12562111.

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 11126521 - 2¹ = 11126519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11126561) 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, 794745 + ... + 794758.

It is an arithmetic number, because the mean of its divisors is an integer number (3179008).

Almost surely, 2^11126521 is an apocalyptic number.

It is an amenable number.

11126521 is a deficient number, since it is larger than the sum of its proper divisors (1589511).

11126521 is an equidigital number, since it uses as much as digits as its factorization.

11126521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589510.

The product of its digits is 120, while the sum is 19.

The square root of 11126521 is about 3335.6440157787. The cubic root of 11126521 is about 223.2474279146.

Adding to 11126521 its reverse (12562111), we get a palindrome (23688632).

The spelling of 11126521 in words is "eleven million, one hundred twenty-six thousand, five hundred twenty-one".