13313161 has 2 divisors, whose sum is σ = 13313162. Its totient is φ = 13313160.

The previous prime is 13313147. The next prime is 13313171. The reversal of 13313161 is 16131331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11861136 + 1452025 = 3444^2 + 1205^2 .

It is an emirp because it is prime and its reverse (16131331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13313161 - 2⁷ = 13313033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13313141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656580 + 6656581.

It is an arithmetic number, because the mean of its divisors is an integer number (6656581).

Almost surely, 2^13313161 is an apocalyptic number.

It is an amenable number.

13313161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313161 is an equidigital number, since it uses as much as digits as its factorization.

13313161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 19.

The square root of 13313161 is about 3648.7204606547. The cubic root of 13313161 is about 237.0065752121.

Adding to 13313161 its reverse (16131331), we get a palindrome (29444492).

The spelling of 13313161 in words is "thirteen million, three hundred thirteen thousand, one hundred sixty-one".