13610161 has 2 divisors, whose sum is σ = 13610162. Its totient is φ = 13610160.

The previous prime is 13610159. The next prime is 13610221. The reversal of 13610161 is 16101631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 2421136 = 3345^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 13610161 - 2¹ = 13610159 is a prime.

Together with 13610159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13610131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6805080 + 6805081.

It is an arithmetic number, because the mean of its divisors is an integer number (6805081).

Almost surely, 2^13610161 is an apocalyptic number.

It is an amenable number.

13610161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13610161 is an equidigital number, since it uses as much as digits as its factorization.

13610161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 13610161 is about 3689.1951696813. The cubic root of 13610161 is about 238.7560695806.

Adding to 13610161 its reverse (16101631), we get a palindrome (29711792).

The spelling of 13610161 in words is "thirteen million, six hundred ten thousand, one hundred sixty-one".