12814609 has 4 divisors (see below), whose sum is σ = 12841200. Its totient is φ = 12788020.

The previous prime is 12814601. The next prime is 12814631. The reversal of 12814609 is 90641821.

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: 90641821 = 67 ⋅1352863.

It is a cyclic number.

It is not a de Polignac number, because 12814609 - 2³ = 12814601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12814601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12559 + ... + 13540.

It is an arithmetic number, because the mean of its divisors is an integer number (3210300).

Almost surely, 2^12814609 is an apocalyptic number.

It is an amenable number.

12814609 is a deficient number, since it is larger than the sum of its proper divisors (26591).

12814609 is an equidigital number, since it uses as much as digits as its factorization.

12814609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26590.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12814609 is about 3579.7498515958. The cubic root of 12814609 is about 234.0103789197.

The spelling of 12814609 in words is "twelve million, eight hundred fourteen thousand, six hundred nine".