14819681 has 2 divisors, whose sum is σ = 14819682. Its totient is φ = 14819680.

The previous prime is 14819671. The next prime is 14819683. The reversal of 14819681 is 18691841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11669056 + 3150625 = 3416^2 + 1775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14819681 is a prime.

It is a super-2 number, since 2×14819681² = 439245889883522, which contains 22 as substring.

Together with 14819683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14819683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7409840 + 7409841.

It is an arithmetic number, because the mean of its divisors is an integer number (7409841).

Almost surely, 2^14819681 is an apocalyptic number.

It is an amenable number.

14819681 is a deficient number, since it is larger than the sum of its proper divisors (1).

14819681 is an equidigital number, since it uses as much as digits as its factorization.

14819681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 38.

The square root of 14819681 is about 3849.6338786955. The cubic root of 14819681 is about 245.6289877349.

The spelling of 14819681 in words is "fourteen million, eight hundred nineteen thousand, six hundred eighty-one".