14938381 has 2 divisors, whose sum is σ = 14938382. Its totient is φ = 14938380.

The previous prime is 14938379. The next prime is 14938397. The reversal of 14938381 is 18383941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12489156 + 2449225 = 3534^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 14938381 - 2¹ = 14938379 is a prime.

It is a super-2 number, since 2×14938381² = 446310453802322, which contains 22 as substring.

Together with 14938379, 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 14938381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14938321) 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, 7469190 + 7469191.

It is an arithmetic number, because the mean of its divisors is an integer number (7469191).

Almost surely, 2^14938381 is an apocalyptic number.

It is an amenable number.

14938381 is a deficient number, since it is larger than the sum of its proper divisors (1).

14938381 is an equidigital number, since it uses as much as digits as its factorization.

14938381 is an odious number, because the sum of its binary digits is odd.

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

The square root of 14938381 is about 3865.0201810599. The cubic root of 14938381 is about 246.2830427973.

The spelling of 14938381 in words is "fourteen million, nine hundred thirty-eight thousand, three hundred eighty-one".