13939361 has 2 divisors, whose sum is σ = 13939362. Its totient is φ = 13939360.

The previous prime is 13939351. The next prime is 13939363. The reversal of 13939361 is 16393931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9186961 + 4752400 = 3031^2 + 2180^2 .

It is a cyclic number.

It is not a de Polignac number, because 13939361 - 2⁶ = 13939297 is a prime.

Together with 13939363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13939363) 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, 6969680 + 6969681.

It is an arithmetic number, because the mean of its divisors is an integer number (6969681).

Almost surely, 2^13939361 is an apocalyptic number.

It is an amenable number.

13939361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13939361 is an equidigital number, since it uses as much as digits as its factorization.

13939361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13122, while the sum is 35.

The square root of 13939361 is about 3733.5453660027. The cubic root of 13939361 is about 240.6657499098.

The spelling of 13939361 in words is "thirteen million, nine hundred thirty-nine thousand, three hundred sixty-one".