859138 has 16 divisors (see below), whose sum is σ = 1488960. Its totient is φ = 364176.

The previous prime is 859121. The next prime is 859181. The reversal of 859138 is 831958.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (93060).

2⁸⁵⁹¹³⁸ is an apocalyptic number.

859138 is a deficient number, since it is larger than the sum of its proper divisors (629822).

859138 is a wasteful number, since it uses less digits than its factorization.

859138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681.

The product of its digits is 8640, while the sum is 34.

The square root of 859138 is about 926.8969737786. The cubic root of 859138 is about 95.0650708393.

The spelling of 859138 in words is "eight hundred fifty-nine thousand, one hundred thirty-eight".