85197315 has 32 divisors (see below), whose sum is σ = 157040640. Its totient is φ = 38634624.

The previous prime is 85197293. The next prime is 85197337. The reversal of 85197315 is 51379158.

It is an interprime number because it is at equal distance from previous prime (85197293) and next prime (85197337).

It is not a de Polignac number, because 85197315 - 2⁵ = 85197283 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10141 + ... + 16529.

It is an arithmetic number, because the mean of its divisors is an integer number (4907520).

Almost surely, 2^85197315 is an apocalyptic number.

85197315 is a deficient number, since it is larger than the sum of its proper divisors (71843325).

85197315 is a wasteful number, since it uses less digits than its factorization.

85197315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6531.

The product of its digits is 37800, while the sum is 39.

The square root of 85197315 is about 9230.2391626653. The cubic root of 85197315 is about 440.0229240811.

The spelling of 85197315 in words is "eighty-five million, one hundred ninety-seven thousand, three hundred fifteen".