135805236 has 48 divisors (see below), whose sum is σ = 381212160. Its totient is φ = 36758880.

The previous prime is 135805213. The next prime is 135805237. The reversal of 135805236 is 632508531.

It is a junction number, because it is equal to n+sod(n) for n = 135805197 and 135805206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135805237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40950 + ... + 44141.

It is an arithmetic number, because the mean of its divisors is an integer number (7941920).

Almost surely, 2^135805236 is an apocalyptic number.

It is an amenable number.

135805236 is an abundant number, since it is smaller than the sum of its proper divisors (245406924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135805236 is a wasteful number, since it uses less digits than its factorization.

135805236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85124 (or 85122 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 135805236 is about 11653.5503602979. The cubic root of 135805236 is about 514.0107140444.

The spelling of 135805236 in words is "one hundred thirty-five million, eight hundred five thousand, two hundred thirty-six".