85091751 has 6 divisors (see below), whose sum is σ = 122910320. Its totient is φ = 56727828.

The previous prime is 85091737. The next prime is 85091753. The reversal of 85091751 is 15719058.

It is not a de Polignac number, because 85091751 - 2⁵ = 85091719 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 (85091753) 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 5 ways as a sum of consecutive naturals, for example, 4727311 + ... + 4727328.

Almost surely, 2^85091751 is an apocalyptic number.

85091751 is a deficient number, since it is larger than the sum of its proper divisors (37818569).

85091751 is a wasteful number, since it uses less digits than its factorization.

85091751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454645 (or 9454642 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 85091751 is about 9224.5190118510. The cubic root of 85091751 is about 439.8411117079.

The spelling of 85091751 in words is "eighty-five million, ninety-one thousand, seven hundred fifty-one".