12469009 has 4 divisors (see below), whose sum is σ = 14250304. Its totient is φ = 10687716.

The previous prime is 12469003. The next prime is 12469069. The reversal of 12469009 is 90096421.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90096421 = 557 ⋅161753.

It is a cyclic number.

It is not a de Polignac number, because 12469009 - 2⁷ = 12468881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12469003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890637 + ... + 890650.

It is an arithmetic number, because the mean of its divisors is an integer number (3562576).

Almost surely, 2^12469009 is an apocalyptic number.

It is an amenable number.

12469009 is a deficient number, since it is larger than the sum of its proper divisors (1781295).

12469009 is an equidigital number, since it uses as much as digits as its factorization.

12469009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781294.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 12469009 is about 3531.1483967684. The cubic root of 12469009 is about 231.8874863167.

The spelling of 12469009 in words is "twelve million, four hundred sixty-nine thousand, nine".