842285139 has 8 divisors (see below), whose sum is σ = 1171875072. Its totient is φ = 537109320.

The previous prime is 842285117. The next prime is 842285177. The reversal of 842285139 is 931582248.

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

It is not a de Polignac number, because 842285139 - 2⁵ = 842285107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 842285139.

It is not an unprimeable number, because it can be changed into a prime (842285189) 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, 6103447 + ... + 6103584.

It is an arithmetic number, because the mean of its divisors is an integer number (146484384).

Almost surely, 2^842285139 is an apocalyptic number.

842285139 is a deficient number, since it is larger than the sum of its proper divisors (329589933).

842285139 is a wasteful number, since it uses less digits than its factorization.

842285139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12207057.

The product of its digits is 138240, while the sum is 42.

The square root of 842285139 is about 29022.1491106362. The cubic root of 842285139 is about 944.3936234763.

The spelling of 842285139 in words is "eight hundred forty-two million, two hundred eighty-five thousand, one hundred thirty-nine".