12242009 has 8 divisors (see below), whose sum is σ = 13249152. Its totient is φ = 11244240.

The previous prime is 12241997. The next prime is 12242011. The reversal of 12242009 is 90024221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12242009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12242059) 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, 512 + ... + 4974.

It is an arithmetic number, because the mean of its divisors is an integer number (1656144).

Almost surely, 2^12242009 is an apocalyptic number.

It is an amenable number.

12242009 is a deficient number, since it is larger than the sum of its proper divisors (1007143).

12242009 is a wasteful number, since it uses less digits than its factorization.

12242009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4687.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12242009 is about 3498.8582423413. The cubic root of 12242009 is about 230.4716785345.

The spelling of 12242009 in words is "twelve million, two hundred forty-two thousand, nine".