12105286 has 4 divisors (see below), whose sum is σ = 18157932. Its totient is φ = 6052642.

The previous prime is 12105271. The next prime is 12105293. The reversal of 12105286 is 68250121.

12105286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68250121 = 17 ⋅4014713.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 12105286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3026320 + ... + 3026323.

It is an arithmetic number, because the mean of its divisors is an integer number (4539483).

Almost surely, 2^12105286 is an apocalyptic number.

12105286 is a deficient number, since it is larger than the sum of its proper divisors (6052646).

12105286 is an equidigital number, since it uses as much as digits as its factorization.

12105286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052645.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12105286 is about 3479.2651522987. The cubic root of 12105286 is about 229.6104685705.

The spelling of 12105286 in words is "twelve million, one hundred five thousand, two hundred eighty-six".