85251071 has 8 divisors (see below), whose sum is σ = 87684240. Its totient is φ = 82824768.

The previous prime is 85251059. The next prime is 85251121. The reversal of 85251071 is 17015258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85251071 - 2¹⁸ = 84988927 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 (85251031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33440 + ... + 35898.

It is an arithmetic number, because the mean of its divisors is an integer number (10960530).

Almost surely, 2^85251071 is an apocalyptic number.

85251071 is a deficient number, since it is larger than the sum of its proper divisors (2433169).

85251071 is a wasteful number, since it uses less digits than its factorization.

85251071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 85251071 is about 9233.1506540292. The cubic root of 85251071 is about 440.1154500767.

The spelling of 85251071 in words is "eighty-five million, two hundred fifty-one thousand, seventy-one".