14237981 has 2 divisors, whose sum is σ = 14237982. Its totient is φ = 14237980.

The previous prime is 14237957. The next prime is 14237983. The reversal of 14237981 is 18973241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14182756 + 55225 = 3766^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 14237981 - 2⁶ = 14237917 is a prime.

It is a super-2 number, since 2×14237981² = 405440205912722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 14237983, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14237983) 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 as a sum of consecutive naturals, namely, 7118990 + 7118991.

It is an arithmetic number, because the mean of its divisors is an integer number (7118991).

Almost surely, 2^14237981 is an apocalyptic number.

It is an amenable number.

14237981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14237981 is an equidigital number, since it uses as much as digits as its factorization.

14237981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 14237981 is about 3773.3249263746. The cubic root of 14237981 is about 242.3721989287.

The spelling of 14237981 in words is "fourteen million, two hundred thirty-seven thousand, nine hundred eighty-one".