85122751 has 6 divisors (see below), whose sum is σ = 99020400. Its totient is φ = 72962316.

The previous prime is 85122749. The next prime is 85122797. The reversal of 85122751 is 15722158.

It is not a de Polignac number, because 85122751 - 2¹ = 85122749 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 (85122151) 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 5 ways as a sum of consecutive naturals, for example, 868551 + ... + 868648.

It is an arithmetic number, because the mean of its divisors is an integer number (16503400).

Almost surely, 2^85122751 is an apocalyptic number.

85122751 is a deficient number, since it is larger than the sum of its proper divisors (13897649).

85122751 is a wasteful number, since it uses less digits than its factorization.

85122751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737213 (or 1737206 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 85122751 is about 9226.1991632524. The cubic root of 85122751 is about 439.8945184476.

The spelling of 85122751 in words is "eighty-five million, one hundred twenty-two thousand, seven hundred fifty-one".