85159215 has 32 divisors (see below), whose sum is σ = 152616960. Its totient is φ = 45051552.

The previous prime is 85159189. The next prime is 85159223. The reversal of 85159215 is 51295158.

It is a happy number.

85159215 is a `hidden beast` number, since 8 + 51 + 592 + 15 = 666.

It is not a de Polignac number, because 85159215 - 2⁵ = 85159183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85159215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14662 + ... + 19628.

It is an arithmetic number, because the mean of its divisors is an integer number (4769280).

Almost surely, 2^85159215 is an apocalyptic number.

85159215 is a deficient number, since it is larger than the sum of its proper divisors (67457745).

85159215 is a wasteful number, since it uses less digits than its factorization.

85159215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108 (or 5102 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The square root of 85159215 is about 9228.1750633590. The cubic root of 85159215 is about 439.9573219625.

The spelling of 85159215 in words is "eighty-five million, one hundred fifty-nine thousand, two hundred fifteen".