14662981 has 2 divisors, whose sum is σ = 14662982. Its totient is φ = 14662980.

The previous prime is 14662979. The next prime is 14662987. The reversal of 14662981 is 18926641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14130081 + 532900 = 3759^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 14662981 - 2¹ = 14662979 is a prime.

It is a super-2 number, since 2×14662981² = 430006023612722, which contains 22 as substring.

Together with 14662979, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 14662981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14662987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7331490 + 7331491.

It is an arithmetic number, because the mean of its divisors is an integer number (7331491).

Almost surely, 2^14662981 is an apocalyptic number.

It is an amenable number.

14662981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14662981 is an equidigital number, since it uses as much as digits as its factorization.

14662981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 14662981 is about 3829.2272066306. The cubic root of 14662981 is about 244.7601762596.

The spelling of 14662981 in words is "fourteen million, six hundred sixty-two thousand, nine hundred eighty-one".