851122 has 8 divisors (see below), whose sum is σ = 1351836. Its totient is φ = 400512.

The previous prime is 851117. The next prime is 851131. The reversal of 851122 is 221158.

It can be written as a sum of positive squares in 2 ways, for example, as 844561 + 6561 = 919^2 + 81^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 851122.

It is an unprimeable number.

851122 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12483 + ... + 12550.

2⁸⁵¹¹²² is an apocalyptic number.

851122 is a deficient number, since it is larger than the sum of its proper divisors (500714).

851122 is a wasteful number, since it uses less digits than its factorization.

851122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25052.

The product of its digits is 160, while the sum is 19.

The square root of 851122 is about 922.5627349942. The cubic root of 851122 is about 94.7684851954.

The spelling of 851122 in words is "eight hundred fifty-one thousand, one hundred twenty-two".