12636112 has 40 divisors (see below), whose sum is σ = 25656840. Its totient is φ = 6021120.

The previous prime is 12636103. The next prime is 12636139. The reversal of 12636112 is 21163621.

It can be written as a sum of positive squares in 4 ways, for example, as 553536 + 12082576 = 744^2 + 3476^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 52312 + ... + 52552.

It is an arithmetic number, because the mean of its divisors is an integer number (641421).

Almost surely, 2^12636112 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 12636112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12828420).

12636112 is an abundant number, since it is smaller than the sum of its proper divisors (13020728).

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

12636112 is a wasteful number, since it uses less digits than its factorization.

12636112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 385 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 12636112 is about 3554.7309321522. The cubic root of 12636112 is about 232.9187704591.

Adding to 12636112 its reverse (21163621), we get a palindrome (33799733).

The spelling of 12636112 in words is "twelve million, six hundred thirty-six thousand, one hundred twelve".