13022161 has 2 divisors, whose sum is σ = 13022162. Its totient is φ = 13022160.

The previous prime is 13022147. The next prime is 13022171. The reversal of 13022161 is 16122031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7049025 + 5973136 = 2655^2 + 2444^2 .

It is a cyclic number.

It is not a de Polignac number, because 13022161 - 2⁵ = 13022129 is a prime.

It is not a weakly prime, because it can be changed into another prime (13022171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511080 + 6511081.

It is an arithmetic number, because the mean of its divisors is an integer number (6511081).

Almost surely, 2^13022161 is an apocalyptic number.

It is an amenable number.

13022161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13022161 is an equidigital number, since it uses as much as digits as its factorization.

13022161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 13022161 is about 3608.6231446356. The cubic root of 13022161 is about 235.2670029944.

Adding to 13022161 its reverse (16122031), we get a palindrome (29144192).

The spelling of 13022161 in words is "thirteen million, twenty-two thousand, one hundred sixty-one".