12118650 has 48 divisors (see below), whose sum is σ = 30292704. Its totient is φ = 3206080.

The previous prime is 12118643. The next prime is 12118651. The reversal of 12118650 is 5681121.

It is a self number, because there is not a number n which added to its sum of digits gives 12118650.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25717 + ... + 26183.

It is an arithmetic number, because the mean of its divisors is an integer number (631098).

Almost surely, 2^12118650 is an apocalyptic number.

12118650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12118650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15146352).

12118650 is an abundant number, since it is smaller than the sum of its proper divisors (18174054).

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

12118650 is a wasteful number, since it uses less digits than its factorization.

12118650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12118650 is about 3481.1851430224. The cubic root of 12118650 is about 229.6949326578.

Adding to 12118650 its reverse (5681121), we get a palindrome (17799771).

The spelling of 12118650 in words is "twelve million, one hundred eighteen thousand, six hundred fifty".