11805112 has 32 divisors (see below), whose sum is σ = 24324480. Its totient is φ = 5326560.

The previous prime is 11805107. The next prime is 11805119. The reversal of 11805112 is 21150811.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11805112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11805119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13933 + ... + 14755.

It is an arithmetic number, because the mean of its divisors is an integer number (760140).

Almost surely, 2^11805112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11805112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12162240).

11805112 is an abundant number, since it is smaller than the sum of its proper divisors (12519368).

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

11805112 is a wasteful number, since it uses less digits than its factorization.

11805112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 11805112 is about 3435.8568072607. The cubic root of 11805112 is about 227.6966829477.

Adding to 11805112 its reverse (21150811), we get a palindrome (32955923).

The spelling of 11805112 in words is "eleven million, eight hundred five thousand, one hundred twelve".