85136705 has 16 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 65312640.

The previous prime is 85136683. The next prime is 85136707. The reversal of 85136705 is 50763158.

It is not a de Polignac number, because 85136705 - 2¹⁰ = 85135681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85136707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8576 + ... + 15614.

It is an arithmetic number, because the mean of its divisors is an integer number (6652800).

Almost surely, 2^85136705 is an apocalyptic number.

It is an amenable number.

85136705 is a deficient number, since it is larger than the sum of its proper divisors (21308095).

85136705 is a wasteful number, since it uses less digits than its factorization.

85136705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 85136705 is about 9226.9553483259. The cubic root of 85136705 is about 439.9185541398.

The spelling of 85136705 in words is "eighty-five million, one hundred thirty-six thousand, seven hundred five".