842133 has 4 divisors (see below), whose sum is σ = 1122848. Its totient is φ = 561420.

The previous prime is 842113. The next prime is 842141. The reversal of 842133 is 331248.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 842133 - 2¹² = 838037 is a prime.

It is a D-number.

It is a Duffinian number.

842133 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842113) 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 3 ways as a sum of consecutive naturals, for example, 140353 + ... + 140358.

It is an arithmetic number, because the mean of its divisors is an integer number (280712).

2⁸⁴²¹³³ is an apocalyptic number.

It is an amenable number.

842133 is a deficient number, since it is larger than the sum of its proper divisors (280715).

842133 is a wasteful number, since it uses less digits than its factorization.

842133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280714.

The product of its digits is 576, while the sum is 21.

The square root of 842133 is about 917.6780481193. The cubic root of 842133 is about 94.4336759220.

The spelling of 842133 in words is "eight hundred forty-two thousand, one hundred thirty-three".