13799281 has 2 divisors, whose sum is σ = 13799282. Its totient is φ = 13799280.

The previous prime is 13799249. The next prime is 13799293. The reversal of 13799281 is 18299731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13024881 + 774400 = 3609^2 + 880^2 .

It is an emirp because it is prime and its reverse (18299731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13799281 - 2⁵ = 13799249 is a prime.

It is a super-2 number, since 2×13799281² = 380840312233922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13799081) 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, 6899640 + 6899641.

It is an arithmetic number, because the mean of its divisors is an integer number (6899641).

Almost surely, 2^13799281 is an apocalyptic number.

It is an amenable number.

13799281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13799281 is an equidigital number, since it uses as much as digits as its factorization.

13799281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 40.

The square root of 13799281 is about 3714.7383487939. The cubic root of 13799281 is about 239.8568648832.

The spelling of 13799281 in words is "thirteen million, seven hundred ninety-nine thousand, two hundred eighty-one".