13345081 has 2 divisors, whose sum is σ = 13345082. Its totient is φ = 13345080.

The previous prime is 13345069. The next prime is 13345109. The reversal of 13345081 is 18054331.

13345081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13249600 + 95481 = 3640^2 + 309^2 .

It is an emirp because it is prime and its reverse (18054331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13345081 - 2⁷ = 13344953 is a prime.

It is a super-2 number, since 2×13345081² = 356182373793122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13345001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6672540 + 6672541.

It is an arithmetic number, because the mean of its divisors is an integer number (6672541).

Almost surely, 2^13345081 is an apocalyptic number.

It is an amenable number.

13345081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13345081 is an equidigital number, since it uses as much as digits as its factorization.

13345081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 13345081 is about 3653.0919780372. The cubic root of 13345081 is about 237.1958418509.

The spelling of 13345081 in words is "thirteen million, three hundred forty-five thousand, eighty-one".