14549681 has 4 divisors (see below), whose sum is σ = 14561652. Its totient is φ = 14537712.

The previous prime is 14549669. The next prime is 14549683. The reversal of 14549681 is 18694541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18694541 = 67 ⋅279023.

It can be written as a sum of positive squares in 2 ways, for example, as 7789681 + 6760000 = 2791^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 14549681 - 2²² = 10355377 is a prime.

It is a super-2 number, since 2×14549681² = 423386434403522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14549683) 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, 3926 + ... + 6671.

It is an arithmetic number, because the mean of its divisors is an integer number (3640413).

Almost surely, 2^14549681 is an apocalyptic number.

It is an amenable number.

14549681 is a deficient number, since it is larger than the sum of its proper divisors (11971).

14549681 is a wasteful number, since it uses less digits than its factorization.

14549681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11970.

The product of its digits is 34560, while the sum is 38.

The square root of 14549681 is about 3814.4044096032. The cubic root of 14549681 is about 244.1281296499.

The spelling of 14549681 in words is "fourteen million, five hundred forty-nine thousand, six hundred eighty-one".