12180009 has 8 divisors (see below), whose sum is σ = 16256160. Its totient is φ = 8111936.

The previous prime is 12179989. The next prime is 12180011. The reversal of 12180009 is 90008121.

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

It is a cyclic number.

It is not a de Polignac number, because 12180009 - 2⁸ = 12179753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12180079) 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 7 ways as a sum of consecutive naturals, for example, 4657 + ... + 6785.

It is an arithmetic number, because the mean of its divisors is an integer number (2032020).

Almost surely, 2^12180009 is an apocalyptic number.

It is an amenable number.

12180009 is a deficient number, since it is larger than the sum of its proper divisors (4076151).

12180009 is a wasteful number, since it uses less digits than its factorization.

12180009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 12180009 is about 3489.9869627264. The cubic root of 12180009 is about 230.0819430771.

The spelling of 12180009 in words is "twelve million, one hundred eighty thousand, nine".