12168125 has 10 divisors (see below), whose sum is σ = 15206070. Its totient is φ = 9734000.

The previous prime is 12168077. The next prime is 12168137. The reversal of 12168125 is 52186121.

It can be written as a sum of positive squares in 5 ways, for example, as 5583769 + 6584356 = 2363^2 + 2566^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12168125 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12168094 and 12168103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9110 + ... + 10359.

It is an arithmetic number, because the mean of its divisors is an integer number (1520607).

Almost surely, 2^12168125 is an apocalyptic number.

It is an amenable number.

12168125 is a deficient number, since it is larger than the sum of its proper divisors (3037945).

12168125 is an frugal number, since it uses more digits than its factorization.

12168125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19489 (or 19474 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 12168125 is about 3488.2839620650. The cubic root of 12168125 is about 230.0070886284.

The spelling of 12168125 in words is "twelve million, one hundred sixty-eight thousand, one hundred twenty-five".