12861126 has 64 divisors (see below), whose sum is σ = 30260160. Its totient is φ = 4043520.

The previous prime is 12861113. The next prime is 12861131. The reversal of 12861126 is 62116821.

12861126 is a `hidden beast` number, since 1 + 28 + 611 + 26 = 666.

12861126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12861126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81840 + ... + 81996.

It is an arithmetic number, because the mean of its divisors is an integer number (472815).

Almost surely, 2^12861126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12861126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15130080).

12861126 is an abundant number, since it is smaller than the sum of its proper divisors (17399034).

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

12861126 is a wasteful number, since it uses less digits than its factorization.

12861126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 12861126 is about 3586.2412077271. The cubic root of 12861126 is about 234.2931893666.

Adding to 12861126 its reverse (62116821), we get a palindrome (74977947).

The spelling of 12861126 in words is "twelve million, eight hundred sixty-one thousand, one hundred twenty-six".