85745185 has 4 divisors (see below), whose sum is σ = 102894228. Its totient is φ = 68596144.

The previous prime is 85745171. The next prime is 85745197. The reversal of 85745185 is 58154758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58154758 = 2 ⋅29077379.

It can be written as a sum of positive squares in 2 ways, for example, as 68029504 + 17715681 = 8248^2 + 4209^2 .

It is a cyclic number.

It is not a de Polignac number, because 85745185 - 2²³ = 77356577 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

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, 8574514 + ... + 8574523.

It is an arithmetic number, because the mean of its divisors is an integer number (25723557).

Almost surely, 2^85745185 is an apocalyptic number.

It is an amenable number.

85745185 is a deficient number, since it is larger than the sum of its proper divisors (17149043).

85745185 is a wasteful number, since it uses less digits than its factorization.

85745185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17149042.

The product of its digits is 224000, while the sum is 43.

The square root of 85745185 is about 9259.8695995138. The cubic root of 85745185 is about 440.9641135402.

The spelling of 85745185 in words is "eighty-five million, seven hundred forty-five thousand, one hundred eighty-five".