170131085 has 4 divisors (see below), whose sum is σ = 204157308. Its totient is φ = 136104864.

The previous prime is 170131061. The next prime is 170131097. The reversal of 170131085 is 580131071.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59923081 + 110208004 = 7741^2 + 10498^2 .

It is a cyclic number.

It is not a de Polignac number, because 170131085 - 2¹⁶ = 170065549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17013104 + ... + 17013113.

It is an arithmetic number, because the mean of its divisors is an integer number (51039327).

Almost surely, 2^170131085 is an apocalyptic number.

It is an amenable number.

170131085 is a deficient number, since it is larger than the sum of its proper divisors (34026223).

170131085 is an equidigital number, since it uses as much as digits as its factorization.

170131085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34026222.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 170131085 is about 13043.4307220148. The cubic root of 170131085 is about 554.1081746042.

The spelling of 170131085 in words is "one hundred seventy million, one hundred thirty-one thousand, eighty-five".