85159385 has 16 divisors (see below), whose sum is σ = 105267600. Its totient is φ = 66087936.

The previous prime is 85159381. The next prime is 85159397. The reversal of 85159385 is 58395158.

It can be written as a sum of positive squares in 8 ways, for example, as 3003289 + 82156096 = 1733^2 + 9064^2 .

It is a cyclic number.

It is not a de Polignac number, because 85159385 - 2² = 85159381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85159381) 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, 104861 + ... + 105669.

It is an arithmetic number, because the mean of its divisors is an integer number (6579225).

Almost surely, 2^85159385 is an apocalyptic number.

It is an amenable number.

85159385 is a deficient number, since it is larger than the sum of its proper divisors (20108215).

85159385 is a wasteful number, since it uses less digits than its factorization.

85159385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420.

The product of its digits is 216000, while the sum is 44.

The square root of 85159385 is about 9228.1842742763. The cubic root of 85159385 is about 439.9576147188.

The spelling of 85159385 in words is "eighty-five million, one hundred fifty-nine thousand, three hundred eighty-five".