12480009 has 4 divisors (see below), whose sum is σ = 16640016. Its totient is φ = 8320004.

The previous prime is 12479993. The next prime is 12480029. The reversal of 12480009 is 90008421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12480009 - 2⁴ = 12479993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12480029) 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 3 ways as a sum of consecutive naturals, for example, 2079999 + ... + 2080004.

It is an arithmetic number, because the mean of its divisors is an integer number (4160004).

Almost surely, 2^12480009 is an apocalyptic number.

It is an amenable number.

12480009 is a deficient number, since it is larger than the sum of its proper divisors (4160007).

12480009 is an equidigital number, since it uses as much as digits as its factorization.

12480009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160006.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 12480009 is about 3532.7056203426. The cubic root of 12480009 is about 231.9556556645.

The spelling of 12480009 in words is "twelve million, four hundred eighty thousand, nine".