888139 has 8 divisors (see below), whose sum is σ = 1029888. Its totient is φ = 750120.

The previous prime is 888133. The next prime is 888143. The reversal of 888139 is 931888.

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

It is not a de Polignac number, because 888139 - 2⁷ = 888011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 888098 and 888107.

It is not an unprimeable number, because it can be changed into a prime (888133) 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, 397 + ... + 1390.

It is an arithmetic number, because the mean of its divisors is an integer number (128736).

2⁸⁸⁸¹³⁹ is an apocalyptic number.

888139 is a deficient number, since it is larger than the sum of its proper divisors (141749).

888139 is a wasteful number, since it uses less digits than its factorization.

888139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865.

The product of its digits is 13824, while the sum is 37.

The square root of 888139 is about 942.4112690328. The cubic root of 888139 is about 96.1229255737.

The spelling of 888139 in words is "eight hundred eighty-eight thousand, one hundred thirty-nine".