13730161 has 2 divisors, whose sum is σ = 13730162. Its totient is φ = 13730160.

The previous prime is 13730147. The next prime is 13730173. The reversal of 13730161 is 16103731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13727025 + 3136 = 3705^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 13730161 - 2⁹ = 13729649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13730111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6865080 + 6865081.

It is an arithmetic number, because the mean of its divisors is an integer number (6865081).

Almost surely, 2^13730161 is an apocalyptic number.

It is an amenable number.

13730161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13730161 is an equidigital number, since it uses as much as digits as its factorization.

13730161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 13730161 is about 3705.4231877074. The cubic root of 13730161 is about 239.4557168138.

Adding to 13730161 its reverse (16103731), we get a palindrome (29833892).

The spelling of 13730161 in words is "thirteen million, seven hundred thirty thousand, one hundred sixty-one".