13443161 has 2 divisors, whose sum is σ = 13443162. Its totient is φ = 13443160.

The previous prime is 13443151. The next prime is 13443163. The reversal of 13443161 is 16134431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11323225 + 2119936 = 3365^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 13443161 - 2⁶ = 13443097 is a prime.

Together with 13443163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13443163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721580 + 6721581.

It is an arithmetic number, because the mean of its divisors is an integer number (6721581).

Almost surely, 2^13443161 is an apocalyptic number.

It is an amenable number.

13443161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443161 is an equidigital number, since it uses as much as digits as its factorization.

13443161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 13443161 is about 3666.4916473381. The cubic root of 13443161 is about 237.7755162697.

Adding to 13443161 its reverse (16134431), we get a palindrome (29577592).

The spelling of 13443161 in words is "thirteen million, four hundred forty-three thousand, one hundred sixty-one".