85083191 has 4 divisors (see below), whose sum is σ = 85414512. Its totient is φ = 84751872.

The previous prime is 85083169. The next prime is 85083221. The reversal of 85083191 is 19138058.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85083191 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 (85083161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165275 + ... + 165788.

It is an arithmetic number, because the mean of its divisors is an integer number (21353628).

Almost surely, 2^85083191 is an apocalyptic number.

85083191 is a deficient number, since it is larger than the sum of its proper divisors (331321).

85083191 is a wasteful number, since it uses less digits than its factorization.

85083191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331320.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 85083191 is about 9224.0550193502. The cubic root of 85083191 is about 439.8263622713.

The spelling of 85083191 in words is "eighty-five million, eighty-three thousand, one hundred ninety-one".