14701809 has 4 divisors (see below), whose sum is σ = 19602416. Its totient is φ = 9801204.

The previous prime is 14701783. The next prime is 14701837. The reversal of 14701809 is 90810741.

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.

It is not a de Polignac number, because 14701809 - 2⁵ = 14701777 is a prime.

It is a super-2 number, since 2×14701809² = 432286375744962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14701849) 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, 2450299 + ... + 2450304.

It is an arithmetic number, because the mean of its divisors is an integer number (4900604).

Almost surely, 2^14701809 is an apocalyptic number.

It is an amenable number.

14701809 is a deficient number, since it is larger than the sum of its proper divisors (4900607).

14701809 is an equidigital number, since it uses as much as digits as its factorization.

14701809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900606.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 14701809 is about 3834.2938072088. The cubic root of 14701809 is about 244.9760298637.

The spelling of 14701809 in words is "fourteen million, seven hundred one thousand, eight hundred nine".