8570161 has 2 divisors, whose sum is σ = 8570162. Its totient is φ = 8570160.

The previous prime is 8570137. The next prime is 8570203. The reversal of 8570161 is 1610758.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7480225 + 1089936 = 2735^2 + 1044^2 .

It is a cyclic number.

It is not a de Polignac number, because 8570161 - 2⁵ = 8570129 is a prime.

It is not a weakly prime, because it can be changed into another prime (8570101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4285080 + 4285081.

It is an arithmetic number, because the mean of its divisors is an integer number (4285081).

Almost surely, 2^8570161 is an apocalyptic number.

It is an amenable number.

8570161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8570161 is an equidigital number, since it uses as much as digits as its factorization.

8570161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 8570161 is about 2927.4837318079. The cubic root of 8570161 is about 204.6427328743.

It can be divided in two parts, 85701 and 61, that multiplied together give a triangular number (5227761 = T₃₂₃₃).

The spelling of 8570161 in words is "eight million, five hundred seventy thousand, one hundred sixty-one".