12125806 has 32 divisors (see below), whose sum is σ = 23016960. Its totient is φ = 4653600.

The previous prime is 12125803. The next prime is 12125809. The reversal of 12125806 is 60852121.

12125806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12125803) and next prime (12125809).

It is a super-2 number, since 2×12125806² = 294070342299272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10380 + ... + 11488.

It is an arithmetic number, because the mean of its divisors is an integer number (719280).

Almost surely, 2^12125806 is an apocalyptic number.

12125806 is a deficient number, since it is larger than the sum of its proper divisors (10891154).

12125806 is a wasteful number, since it uses less digits than its factorization.

12125806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12125806 is about 3482.2128022279. The cubic root of 12125806 is about 229.7401349840.

Adding to 12125806 its reverse (60852121), we get a palindrome (72977927).

The spelling of 12125806 in words is "twelve million, one hundred twenty-five thousand, eight hundred six".