13210081 has 2 divisors, whose sum is σ = 13210082. Its totient is φ = 13210080.

The previous prime is 13210033. The next prime is 13210097. The reversal of 13210081 is 18001231.

It is an a-pointer prime, because the next prime (13210097) can be obtained adding 13210081 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10182481 + 3027600 = 3191^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 13210081 - 2⁷ = 13209953 is a prime.

It is a super-2 number, since 2×13210081² = 349012480053122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13210481) 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, 6605040 + 6605041.

It is an arithmetic number, because the mean of its divisors is an integer number (6605041).

Almost surely, 2^13210081 is an apocalyptic number.

It is an amenable number.

13210081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210081 is an equidigital number, since it uses as much as digits as its factorization.

13210081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 13210081 is about 3634.5675120982. The cubic root of 13210081 is about 236.3932982813.

The spelling of 13210081 in words is "thirteen million, two hundred ten thousand, eighty-one".