14831809 has 4 divisors (see below), whose sum is σ = 14917716. Its totient is φ = 14745904.

The previous prime is 14831801. The next prime is 14831813. The reversal of 14831809 is 90813841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90813841 = 3547 ⋅25603.

It can be written as a sum of positive squares in 2 ways, for example, as 13068225 + 1763584 = 3615^2 + 1328^2 .

It is a cyclic number.

It is not a de Polignac number, because 14831809 - 2³ = 14831801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14831801) 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, 42694 + ... + 43039.

It is an arithmetic number, because the mean of its divisors is an integer number (3729429).

Almost surely, 2^14831809 is an apocalyptic number.

It is an amenable number.

14831809 is a deficient number, since it is larger than the sum of its proper divisors (85907).

14831809 is an equidigital number, since it uses as much as digits as its factorization.

14831809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85906.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 14831809 is about 3851.2087712821. The cubic root of 14831809 is about 245.6959746940.

The spelling of 14831809 in words is "fourteen million, eight hundred thirty-one thousand, eight hundred nine".