12105750 has 32 divisors (see below), whose sum is σ = 30217824. Its totient is φ = 3228000.

The previous prime is 12105749. The next prime is 12105757. The reversal of 12105750 is 5750121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7321 + ... + 8820.

It is an arithmetic number, because the mean of its divisors is an integer number (944307).

Almost surely, 2^12105750 is an apocalyptic number.

12105750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12105750 is an abundant number, since it is smaller than the sum of its proper divisors (18112074).

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

12105750 is a wasteful number, since it uses less digits than its factorization.

12105750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16161 (or 16151 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 12105750 is about 3479.3318324069. The cubic root of 12105750 is about 229.6134022172.

Adding to 12105750 its reverse (5750121), we get a palindrome (17855871).

The spelling of 12105750 in words is "twelve million, one hundred five thousand, seven hundred fifty".