85120315 has 16 divisors (see below), whose sum is σ = 118653120. Its totient is φ = 57409920.

The previous prime is 85120297. The next prime is 85120339. The reversal of 85120315 is 51302158.

It is a happy number.

It is not a de Polignac number, because 85120315 - 2¹⁷ = 84989243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85120315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17800 + ... + 22069.

It is an arithmetic number, because the mean of its divisors is an integer number (7415820).

Almost surely, 2^85120315 is an apocalyptic number.

85120315 is a deficient number, since it is larger than the sum of its proper divisors (33532805).

85120315 is a wasteful number, since it uses less digits than its factorization.

85120315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39942.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 85120315 is about 9226.0671469484. The cubic root of 85120315 is about 439.8903221810.

The spelling of 85120315 in words is "eighty-five million, one hundred twenty thousand, three hundred fifteen".