12125866 has 8 divisors (see below), whose sum is σ = 18280800. Its totient is φ = 6032268.

The previous prime is 12125851. The next prime is 12125887. The reversal of 12125866 is 66852121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14836 + ... + 15631.

It is an arithmetic number, because the mean of its divisors is an integer number (2285100).

Almost surely, 2^12125866 is an apocalyptic number.

12125866 is a deficient number, since it is larger than the sum of its proper divisors (6154934).

12125866 is a wasteful number, since it uses less digits than its factorization.

12125866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30668.

The product of its digits is 5760, while the sum is 31.

The square root of 12125866 is about 3482.2214174288. The cubic root of 12125866 is about 229.7405139110.

Adding to 12125866 its reverse (66852121), we get a palindrome (78977987).

The spelling of 12125866 in words is "twelve million, one hundred twenty-five thousand, eight hundred sixty-six".