85900159 has 4 divisors (see below), whose sum is σ = 90421240. Its totient is φ = 81379080.

The previous prime is 85900153. The next prime is 85900169. The reversal of 85900159 is 95100958.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85900159 - 2⁹ = 85899647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85900153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260512 + ... + 2260549.

It is an arithmetic number, because the mean of its divisors is an integer number (22605310).

Almost surely, 2^85900159 is an apocalyptic number.

85900159 is a deficient number, since it is larger than the sum of its proper divisors (4521081).

85900159 is a wasteful number, since it uses less digits than its factorization.

85900159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521080.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 85900159 is about 9268.2338662768. The cubic root of 85900159 is about 441.2296166623.

The spelling of 85900159 in words is "eighty-five million, nine hundred thousand, one hundred fifty-nine".