26138 has 8 divisors (see below), whose sum is σ = 44832. Its totient is φ = 11196.

The previous prime is 26119. The next prime is 26141. The reversal of 26138 is 83162.

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

It is a nialpdrome in base 13 and base 14.

It is a zygodrome in base 13.

It is an unprimeable number.

26138 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 920 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (5604).

2²⁶¹³⁸ is an apocalyptic number.

26138 is a deficient number, since it is larger than the sum of its proper divisors (18694).

26138 is a wasteful number, since it uses less digits than its factorization.

26138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876.

The product of its digits is 288, while the sum is 20.

The square root of 26138 is about 161.6725084855. The cubic root of 26138 is about 29.6772816171.

The spelling of 26138 in words is "twenty-six thousand, one hundred thirty-eight".