842154 has 16 divisors (see below), whose sum is σ = 1702848. Its totient is φ = 277632.

The previous prime is 842147. The next prime is 842159. The reversal of 842154 is 451248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842159) by changing a digit.

842154 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 7 ways as a sum of consecutive naturals, for example, 142 + ... + 1305.

It is an arithmetic number, because the mean of its divisors is an integer number (106428).

2⁸⁴²¹⁵⁴ is an apocalyptic number.

842154 is an abundant number, since it is smaller than the sum of its proper divisors (860694).

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

842154 is a wasteful number, since it uses less digits than its factorization.

842154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549.

The product of its digits is 1280, while the sum is 24.

The square root of 842154 is about 917.6894899692. The cubic root of 842154 is about 94.4344608696.

The spelling of 842154 in words is "eight hundred forty-two thousand, one hundred fifty-four".