12105716 has 24 divisors (see below), whose sum is σ = 24507840. Its totient is φ = 5124672.

The previous prime is 12105647. The next prime is 12105733. The reversal of 12105716 is 61750121.

It is a junction number, because it is equal to n+sod(n) for n = 12105691 and 12105700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (1021160).

Almost surely, 2^12105716 is an apocalyptic number.

It is an amenable number.

12105716 is an abundant number, since it is smaller than the sum of its proper divisors (12402124).

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

12105716 is a wasteful number, since it uses less digits than its factorization.

12105716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303 (or 5301 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 12105716 is about 3479.3269464079. The cubic root of 12105716 is about 229.6131872542.

Adding to 12105716 its reverse (61750121), we get a palindrome (73855837).

It can be divided in two parts, 12105 and 716, that added together give a palindrome (12821).

The spelling of 12105716 in words is "twelve million, one hundred five thousand, seven hundred sixteen".