135826 has 8 divisors (see below), whose sum is σ = 205884. Its totient is φ = 67200.

The previous prime is 135799. The next prime is 135829. The reversal of 135826 is 628531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133225 + 2601 = 365^2 + 51^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 135826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135829) by changing a digit.

135826 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75 + ... + 526.

2¹³⁵⁸²⁶ is an apocalyptic number.

135826 is a deficient number, since it is larger than the sum of its proper divisors (70058).

135826 is a wasteful number, since it uses less digits than its factorization.

135826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716.

The product of its digits is 1440, while the sum is 25.

The square root of 135826 is about 368.5457909134. The cubic root of 135826 is about 51.4036909339.

It can be divided in two parts, 135 and 826, that added together give a square (961 = 31²).

The spelling of 135826 in words is "one hundred thirty-five thousand, eight hundred twenty-six".