13935281 has 2 divisors, whose sum is σ = 13935282. Its totient is φ = 13935280.

The previous prime is 13935277. The next prime is 13935293. The reversal of 13935281 is 18253931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10784656 + 3150625 = 3284^2 + 1775^2 .

It is an emirp because it is prime and its reverse (18253931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13935281 - 2² = 13935277 is a prime.

It is a super-2 number, since 2×13935281² = 388384113097922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13935211) 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, 6967640 + 6967641.

It is an arithmetic number, because the mean of its divisors is an integer number (6967641).

Almost surely, 2^13935281 is an apocalyptic number.

It is an amenable number.

13935281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13935281 is an equidigital number, since it uses as much as digits as its factorization.

13935281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 13935281 is about 3732.9989284756. The cubic root of 13935281 is about 240.6422669568.

The spelling of 13935281 in words is "thirteen million, nine hundred thirty-five thousand, two hundred eighty-one".