12182009 has 8 divisors (see below), whose sum is σ = 13943808. Its totient is φ = 10425600.

The previous prime is 12182003. The next prime is 12182033. The reversal of 12182009 is 90028121.

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 12182009 - 2⁸ = 12181753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12182003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6809 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (1742976).

Almost surely, 2^12182009 is an apocalyptic number.

It is an amenable number.

12182009 is a deficient number, since it is larger than the sum of its proper divisors (1761799).

12182009 is a wasteful number, since it uses less digits than its factorization.

12182009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 12182009 is about 3490.2734849865. The cubic root of 12182009 is about 230.0945358073.

The spelling of 12182009 in words is "twelve million, one hundred eighty-two thousand, nine".