13103161 has 2 divisors, whose sum is σ = 13103162. Its totient is φ = 13103160.

The previous prime is 13103159. The next prime is 13103171. The reversal of 13103161 is 16130131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9610000 + 3493161 = 3100^2 + 1869^2 .

It is an emirp because it is prime and its reverse (16130131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13103161 - 2¹ = 13103159 is a prime.

Together with 13103159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13103171) 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, 6551580 + 6551581.

It is an arithmetic number, because the mean of its divisors is an integer number (6551581).

Almost surely, 2^13103161 is an apocalyptic number.

It is an amenable number.

13103161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13103161 is an equidigital number, since it uses as much as digits as its factorization.

13103161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 13103161 is about 3619.8288633580. The cubic root of 13103161 is about 235.7537949952.

Adding to 13103161 its reverse (16130131), we get a palindrome (29233292).

The spelling of 13103161 in words is "thirteen million, one hundred three thousand, one hundred sixty-one".