13305161 has 2 divisors, whose sum is σ = 13305162. Its totient is φ = 13305160.

The previous prime is 13305157. The next prime is 13305167. The reversal of 13305161 is 16150331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12996025 + 309136 = 3605^2 + 556^2 .

It is an emirp because it is prime and its reverse (16150331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13305161 - 2² = 13305157 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13305167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6652580 + 6652581.

It is an arithmetic number, because the mean of its divisors is an integer number (6652581).

Almost surely, 2^13305161 is an apocalyptic number.

It is an amenable number.

13305161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13305161 is an equidigital number, since it uses as much as digits as its factorization.

13305161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13305161 is about 3647.6240211952. The cubic root of 13305161 is about 236.9590925615.

Adding to 13305161 its reverse (16150331), we get a palindrome (29455492).

The spelling of 13305161 in words is "thirteen million, three hundred five thousand, one hundred sixty-one".