86195171 has 2 divisors, whose sum is σ = 86195172. Its totient is φ = 86195170.

The previous prime is 86195143. The next prime is 86195189. The reversal of 86195171 is 17159168.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86195171 - 2¹⁸ = 85933027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86195101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43097585 + 43097586.

It is an arithmetic number, because the mean of its divisors is an integer number (43097586).

Almost surely, 2^86195171 is an apocalyptic number.

86195171 is a deficient number, since it is larger than the sum of its proper divisors (1).

86195171 is an equidigital number, since it uses as much as digits as its factorization.

86195171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 38.

The square root of 86195171 is about 9284.1354470947. The cubic root of 86195171 is about 441.7341531779.

The spelling of 86195171 in words is "eighty-six million, one hundred ninety-five thousand, one hundred seventy-one".