11133522 has 48 divisors (see below), whose sum is σ = 25223640. Its totient is φ = 3545856.

The previous prime is 11133481. The next prime is 11133539. The reversal of 11133522 is 22533111.

11133522 is a `hidden beast` number, since 11 + 133 + 522 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10949481 + 184041 = 3309^2 + 429^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11133495 and 11133504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48504 + ... + 48732.

Almost surely, 2^11133522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11133522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12611820).

11133522 is an abundant number, since it is smaller than the sum of its proper divisors (14090118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11133522 is a wasteful number, since it uses less digits than its factorization.

11133522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 344 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 11133522 is about 3336.6932732872. The cubic root of 11133522 is about 223.2942418152.

Adding to 11133522 its reverse (22533111), we get a palindrome (33666633).

It can be divided in two parts, 111 and 33522, that added together give a palindrome (33633).

The spelling of 11133522 in words is "eleven million, one hundred thirty-three thousand, five hundred twenty-two".