85018271 has 4 divisors (see below), whose sum is σ = 91558152. Its totient is φ = 78478392.

The previous prime is 85018261. The next prime is 85018279. The reversal of 85018271 is 17281058.

It is a happy number.

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-85018271 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 (85018279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3269921 + ... + 3269946.

It is an arithmetic number, because the mean of its divisors is an integer number (22889538).

Almost surely, 2^85018271 is an apocalyptic number.

85018271 is a deficient number, since it is larger than the sum of its proper divisors (6539881).

85018271 is a wasteful number, since it uses less digits than its factorization.

85018271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539880.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 85018271 is about 9220.5352881489. The cubic root of 85018271 is about 439.7144686745.

The spelling of 85018271 in words is "eighty-five million, eighteen thousand, two hundred seventy-one".