14392981 has 2 divisors, whose sum is σ = 14392982. Its totient is φ = 14392980.

The previous prime is 14392979. The next prime is 14393059. The reversal of 14392981 is 18929341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7890481 + 6502500 = 2809^2 + 2550^2 .

It is an emirp because it is prime and its reverse (18929341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14392981 - 2¹ = 14392979 is a prime.

It is a super-2 number, since 2×14392981² = 414315804132722, which contains 22 as substring.

Together with 14392979, 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 14392981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14392901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7196490 + 7196491.

It is an arithmetic number, because the mean of its divisors is an integer number (7196491).

Almost surely, 2^14392981 is an apocalyptic number.

It is an amenable number.

14392981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14392981 is an equidigital number, since it uses as much as digits as its factorization.

14392981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 14392981 is about 3793.8082450224. The cubic root of 14392981 is about 243.2485447174.

The spelling of 14392981 in words is "fourteen million, three hundred ninety-two thousand, nine hundred eighty-one".