842125 has 8 divisors (see below), whose sum is σ = 1051128. Its totient is φ = 673600.

The previous prime is 842113. The next prime is 842141. The reversal of 842125 is 521248.

It can be written as a sum of positive squares in 4 ways, for example, as 35721 + 806404 = 189^2 + 898^2 .

It is not a de Polignac number, because 842125 - 2¹³ = 833933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 842096 and 842105.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3244 + ... + 3493.

It is an arithmetic number, because the mean of its divisors is an integer number (131391).

2⁸⁴²¹²⁵ is an apocalyptic number.

It is an amenable number.

842125 is a deficient number, since it is larger than the sum of its proper divisors (209003).

842125 is an equidigital number, since it uses as much as digits as its factorization.

842125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752 (or 6742 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 842125 is about 917.6736892818. The cubic root of 842125 is about 94.4333768910.

It can be divided in two parts, 84 and 2125, that added together give a square (2209 = 47²).

The spelling of 842125 in words is "eight hundred forty-two thousand, one hundred twenty-five".