851292 has 72 divisors (see below), whose sum is σ = 2476656. Its totient is φ = 244224.

The previous prime is 851273. The next prime is 851293. The reversal of 851292 is 292158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851293) 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 23 ways as a sum of consecutive naturals, for example, 7903 + ... + 8009.

It is an arithmetic number, because the mean of its divisors is an integer number (34398).

2⁸⁵¹²⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 851292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238328).

851292 is an abundant number, since it is smaller than the sum of its proper divisors (1625364).

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

851292 is a wasteful number, since it uses less digits than its factorization.

851292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 142 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 851292 is about 922.6548650498. The cubic root of 851292 is about 94.7747943457.

The spelling of 851292 in words is "eight hundred fifty-one thousand, two hundred ninety-two".