12105126 has 40 divisors (see below), whose sum is σ = 29594664. Its totient is φ = 3667680.

The previous prime is 12105113. The next prime is 12105131. The reversal of 12105126 is 62150121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12105099 and 12105108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1615 + ... + 5178.

Almost surely, 2^12105126 is an apocalyptic number.

12105126 is an abundant number, since it is smaller than the sum of its proper divisors (17489538).

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

12105126 is a wasteful number, since it uses less digits than its factorization.

12105126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6818 (or 6809 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 12105126 is about 3479.2421588616. The cubic root of 12105126 is about 229.6094569508.

Adding to 12105126 its reverse (62150121), we get a palindrome (74255247).

It can be divided in two parts, 1210 and 5126, that added together give a palindrome (6336).

The spelling of 12105126 in words is "twelve million, one hundred five thousand, one hundred twenty-six".