135285808 has 20 divisors (see below), whose sum is σ = 299561680. Its totient is φ = 57979584.

The previous prime is 135285791. The next prime is 135285811. The reversal of 135285808 is 808582531.

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 3 ways as a sum of consecutive naturals, for example, 603843 + ... + 604066.

It is an arithmetic number, because the mean of its divisors is an integer number (14978084).

Almost surely, 2^135285808 is an apocalyptic number.

It is an amenable number.

135285808 is an abundant number, since it is smaller than the sum of its proper divisors (164275872).

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

135285808 is a wasteful number, since it uses less digits than its factorization.

135285808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207924 (or 1207918 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 135285808 is about 11631.2427538935. The cubic root of 135285808 is about 513.3545472015.

The spelling of 135285808 in words is "one hundred thirty-five million, two hundred eighty-five thousand, eight hundred eight".