850122 has 64 divisors (see below), whose sum is σ = 2338560. Its totient is φ = 222912.

The previous prime is 850121. The next prime is 850133. The reversal of 850122 is 221058.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 850095 and 850104.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 850122.

It is not an unprimeable number, because it can be changed into a prime (850121) 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 31 ways as a sum of consecutive naturals, for example, 4828 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (36540).

2⁸⁵⁰¹²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169280).

850122 is an abundant number, since it is smaller than the sum of its proper divisors (1488438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

850122 is a wasteful number, since it uses less digits than its factorization.

850122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 850122 is about 922.0206071450. The cubic root of 850122 is about 94.7313555302.

The spelling of 850122 in words is "eight hundred fifty thousand, one hundred twenty-two".