14843981 has 2 divisors, whose sum is σ = 14843982. Its totient is φ = 14843980.

The previous prime is 14843977. The next prime is 14843999. The reversal of 14843981 is 18934841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12187081 + 2656900 = 3491^2 + 1630^2 .

It is a cyclic number.

It is not a de Polignac number, because 14843981 - 2² = 14843977 is a prime.

It is a super-2 number, since 2×14843981² = 440687543856722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14843951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7421990 + 7421991.

It is an arithmetic number, because the mean of its divisors is an integer number (7421991).

Almost surely, 2^14843981 is an apocalyptic number.

It is an amenable number.

14843981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14843981 is an equidigital number, since it uses as much as digits as its factorization.

14843981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 14843981 is about 3852.7887302576. The cubic root of 14843981 is about 245.7631679738.

The spelling of 14843981 in words is "fourteen million, eight hundred forty-three thousand, nine hundred eighty-one".