13302281 has 2 divisors, whose sum is σ = 13302282. Its totient is φ = 13302280.

The previous prime is 13302241. The next prime is 13302283. The reversal of 13302281 is 18220331.

13302281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8462281 + 4840000 = 2909^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 13302281 - 2⁶ = 13302217 is a prime.

It is a super-2 number, since 2×13302281² = 353901359605922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 13302283, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13302283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6651140 + 6651141.

It is an arithmetic number, because the mean of its divisors is an integer number (6651141).

Almost surely, 2^13302281 is an apocalyptic number.

It is an amenable number.

13302281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13302281 is an equidigital number, since it uses as much as digits as its factorization.

13302281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13302281 is about 3647.2292223001. The cubic root of 13302281 is about 236.9419941481.

The spelling of 13302281 in words is "thirteen million, three hundred two thousand, two hundred eighty-one".