259138 has 8 divisors (see below), whose sum is σ = 424080. Its totient is φ = 117780.

The previous prime is 259123. The next prime is 259151. The reversal of 259138 is 831952.

259138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5868 + ... + 5911.

It is an arithmetic number, because the mean of its divisors is an integer number (53010).

2²⁵⁹¹³⁸ is an apocalyptic number.

259138 is a deficient number, since it is larger than the sum of its proper divisors (164942).

259138 is a wasteful number, since it uses less digits than its factorization.

259138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11792.

The product of its digits is 2160, while the sum is 28.

The square root of 259138 is about 509.0559890621. The cubic root of 259138 is about 63.7544300394.

It can be divided in two parts, 25913 and 8, that added together give a square (25921 = 161²).

The spelling of 259138 in words is "two hundred fifty-nine thousand, one hundred thirty-eight".