13895281 has 2 divisors, whose sum is σ = 13895282. Its totient is φ = 13895280.

The previous prime is 13895249. The next prime is 13895291. The reversal of 13895281 is 18259831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 1000000 = 3591^2 + 1000^2 .

It is an emirp because it is prime and its reverse (18259831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13895281 - 2⁵ = 13895249 is a prime.

It is a super-2 number, since 2×13895281² = 386157668137922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13895281.

It is not a weakly prime, because it can be changed into another prime (13895201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6947640 + 6947641.

It is an arithmetic number, because the mean of its divisors is an integer number (6947641).

Almost surely, 2^13895281 is an apocalyptic number.

It is an amenable number.

13895281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13895281 is an equidigital number, since it uses as much as digits as its factorization.

13895281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 37.

The square root of 13895281 is about 3727.6374555474. The cubic root of 13895281 is about 240.4117988068.

It can be divided in two parts, 1389 and 5281, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 13895281 in words is "thirteen million, eight hundred ninety-five thousand, two hundred eighty-one".