843142 has 8 divisors (see below), whose sum is σ = 1285632. Its totient is φ = 414600.

The previous prime is 843137. The next prime is 843173. The reversal of 843142 is 241348.

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

It is a congruent number.

It is an unprimeable number.

843142 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 3334 + ... + 3577.

It is an arithmetic number, because the mean of its divisors is an integer number (160704).

2⁸⁴³¹⁴² is an apocalyptic number.

843142 is a deficient number, since it is larger than the sum of its proper divisors (442490).

843142 is a wasteful number, since it uses less digits than its factorization.

843142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6974.

The product of its digits is 768, while the sum is 22.

The square root of 843142 is about 918.2276406208. The cubic root of 843142 is about 94.4713760437.

The spelling of 843142 in words is "eight hundred forty-three thousand, one hundred forty-two".