14107981 has 2 divisors, whose sum is σ = 14107982. Its totient is φ = 14107980.

The previous prime is 14107969. The next prime is 14107991. The reversal of 14107981 is 18970141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10989225 + 3118756 = 3315^2 + 1766^2 .

It is an emirp because it is prime and its reverse (18970141) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14107981 is a prime.

It is a super-2 number, since 2×14107981² = 398070255792722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14107921) 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 as a sum of consecutive naturals, namely, 7053990 + 7053991.

It is an arithmetic number, because the mean of its divisors is an integer number (7053991).

Almost surely, 2^14107981 is an apocalyptic number.

It is an amenable number.

14107981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14107981 is an equidigital number, since it uses as much as digits as its factorization.

14107981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 14107981 is about 3756.0592380845. The cubic root of 14107981 is about 241.6322819622.

The spelling of 14107981 in words is "fourteen million, one hundred seven thousand, nine hundred eighty-one".