11445522 has 48 divisors (see below), whose sum is σ = 26705376. Its totient is φ = 3232000.

The previous prime is 11445521. The next prime is 11445523. The reversal of 11445522 is 22554411.

It is an interprime number because it is at equal distance from previous prime (11445521) and next prime (11445523).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11445492 and 11445501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11445521) by changing a digit.

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, 113272 + ... + 113372.

It is an arithmetic number, because the mean of its divisors is an integer number (556362).

Almost surely, 2^11445522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11445522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13352688).

11445522 is an abundant number, since it is smaller than the sum of its proper divisors (15259854).

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

11445522 is a wasteful number, since it uses less digits than its factorization.

11445522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 134 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 11445522 is about 3383.1231133377. The cubic root of 11445522 is about 225.3608825912.

Adding to 11445522 its reverse (22554411), we get a palindrome (33999933).

Subtracting 11445522 from its reverse (22554411), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1144 and 5522, that added together give a palindrome (6666).

The spelling of 11445522 in words is "eleven million, four hundred forty-five thousand, five hundred twenty-two".