12471009 has 8 divisors (see below), whose sum is σ = 16662720. Its totient is φ = 8296656.

The previous prime is 12471001. The next prime is 12471031. The reversal of 12471009 is 90017421.

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

It is not a de Polignac number, because 12471009 - 2³ = 12471001 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12471009.

It is not an unprimeable number, because it can be changed into a prime (12471001) 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, 2557 + ... + 5610.

It is an arithmetic number, because the mean of its divisors is an integer number (2082840).

Almost surely, 2^12471009 is an apocalyptic number.

It is an amenable number.

12471009 is a deficient number, since it is larger than the sum of its proper divisors (4191711).

12471009 is an equidigital number, since it uses as much as digits as its factorization.

12471009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8679.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12471009 is about 3531.4315794023. The cubic root of 12471009 is about 231.8998837248.

The spelling of 12471009 in words is "twelve million, four hundred seventy-one thousand, nine".