842149 has 8 divisors (see below), whose sum is σ = 1050048. Its totient is φ = 656160.

The previous prime is 842147. The next prime is 842159. The reversal of 842149 is 941248.

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

It is a cyclic number.

It is not a de Polignac number, because 842149 - 2¹ = 842147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842141) 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 7 ways as a sum of consecutive naturals, for example, 5392 + ... + 5545.

It is an arithmetic number, because the mean of its divisors is an integer number (131256).

2⁸⁴²¹⁴⁹ is an apocalyptic number.

It is an amenable number.

842149 is a deficient number, since it is larger than the sum of its proper divisors (207899).

842149 is a wasteful number, since it uses less digits than its factorization.

842149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10955.

The product of its digits is 2304, while the sum is 28.

The square root of 842149 is about 917.6867657322. The cubic root of 842149 is about 94.4342739785.

Subtracting 842149 from its reverse (941248), we obtain a palindrome (99099).

The spelling of 842149 in words is "eight hundred forty-two thousand, one hundred forty-nine".