85129175 has 6 divisors (see below), whose sum is σ = 105560208. Its totient is φ = 68103320.

The previous prime is 85129133. The next prime is 85129211. The reversal of 85129175 is 57192158.

It is not a de Polignac number, because 85129175 - 2⁸ = 85128919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1702559 + ... + 1702608.

It is an arithmetic number, because the mean of its divisors is an integer number (17593368).

Almost surely, 2^85129175 is an apocalyptic number.

85129175 is a deficient number, since it is larger than the sum of its proper divisors (20431033).

85129175 is a wasteful number, since it uses less digits than its factorization.

85129175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405177 (or 3405172 counting only the distinct ones).

The product of its digits is 25200, while the sum is 38.

The square root of 85129175 is about 9226.5472957114. The cubic root of 85129175 is about 439.9055840804.

The spelling of 85129175 in words is "eighty-five million, one hundred twenty-nine thousand, one hundred seventy-five".