12047109 has 8 divisors (see below), whose sum is σ = 16228800. Its totient is φ = 7948416.

The previous prime is 12047107. The next prime is 12047111. The reversal of 12047109 is 90174021.

It is an interprime number because it is at equal distance from previous prime (12047107) and next prime (12047111).

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

It is not a de Polignac number, because 12047109 - 2¹ = 12047107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047107) 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, 20409 + ... + 20990.

It is an arithmetic number, because the mean of its divisors is an integer number (2028600).

Almost surely, 2^12047109 is an apocalyptic number.

It is an amenable number.

12047109 is a deficient number, since it is larger than the sum of its proper divisors (4181691).

12047109 is an equidigital number, since it uses as much as digits as its factorization.

12047109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41499.

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

The square root of 12047109 is about 3470.8945532816. The cubic root of 12047109 is about 229.2420481198.

The spelling of 12047109 in words is "twelve million, forty-seven thousand, one hundred nine".