8613161 has 2 divisors, whose sum is σ = 8613162. Its totient is φ = 8613160.

The previous prime is 8613149. The next prime is 8613181. The reversal of 8613161 is 1613168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6528025 + 2085136 = 2555^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 8613161 - 2¹⁸ = 8351017 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8613161.

It is not a weakly prime, because it can be changed into another prime (8613181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4306580 + 4306581.

It is an arithmetic number, because the mean of its divisors is an integer number (4306581).

Almost surely, 2^8613161 is an apocalyptic number.

It is an amenable number.

8613161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8613161 is an equidigital number, since it uses as much as digits as its factorization.

8613161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 8613161 is about 2934.8187337551. The cubic root of 8613161 is about 204.9844207871.

The spelling of 8613161 in words is "eight million, six hundred thirteen thousand, one hundred sixty-one".