12125686 has 8 divisors (see below), whose sum is σ = 19145880. Its totient is φ = 5743728.

The previous prime is 12125657. The next prime is 12125689. The reversal of 12125686 is 68652121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125689) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 159511 + ... + 159586.

It is an arithmetic number, because the mean of its divisors is an integer number (2393235).

Almost surely, 2^12125686 is an apocalyptic number.

12125686 is a deficient number, since it is larger than the sum of its proper divisors (7020194).

12125686 is a wasteful number, since it uses less digits than its factorization.

12125686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319118.

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

The square root of 12125686 is about 3482.1955717622. The cubic root of 12125686 is about 229.7393771263.

The spelling of 12125686 in words is "twelve million, one hundred twenty-five thousand, six hundred eighty-six".