14251681 has 4 divisors (see below), whose sum is σ = 14423472. Its totient is φ = 14079892.

The previous prime is 14251667. The next prime is 14251693. The reversal of 14251681 is 18615241.

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: 18615241 = 2281 ⋅8161.

It is a cyclic number.

It is not a de Polignac number, because 14251681 - 2⁵ = 14251649 is a prime.

It is a super-2 number, since 2×14251681² = 406220822651522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14251631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85771 + ... + 85936.

It is an arithmetic number, because the mean of its divisors is an integer number (3605868).

Almost surely, 2^14251681 is an apocalyptic number.

It is an amenable number.

14251681 is a deficient number, since it is larger than the sum of its proper divisors (171791).

14251681 is an equidigital number, since it uses as much as digits as its factorization.

14251681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171790.

The product of its digits is 1920, while the sum is 28.

The square root of 14251681 is about 3775.1398649586. The cubic root of 14251681 is about 242.4499120699.

It can be divided in two parts, 14 and 251681, that added together give a triangular number (251695 = T₇₀₉).

The spelling of 14251681 in words is "fourteen million, two hundred fifty-one thousand, six hundred eighty-one".