85245171 has 8 divisors (see below), whose sum is σ = 123993024. Its totient is φ = 51663720.

The previous prime is 85245137. The next prime is 85245203. The reversal of 85245171 is 17154258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85245171 - 2¹³ = 85236979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2583187 = 85245171 / (8 + 5 + 2 + 4 + 5 + 1 + 7 + 1).

It is not an unprimeable number, because it can be changed into a prime (85245271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291561 + ... + 1291626.

It is an arithmetic number, because the mean of its divisors is an integer number (15499128).

Almost surely, 2^85245171 is an apocalyptic number.

85245171 is a deficient number, since it is larger than the sum of its proper divisors (38747853).

85245171 is a wasteful number, since it uses less digits than its factorization.

85245171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583201.

The product of its digits is 11200, while the sum is 33.

The square root of 85245171 is about 9232.8311475950. The cubic root of 85245171 is about 440.1052967690.

It can be divided in two parts, 8524 and 5171, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 85245171 in words is "eighty-five million, two hundred forty-five thousand, one hundred seventy-one".