135686804 has 24 divisors (see below), whose sum is σ = 259459200. Its totient is φ = 61575680.

The previous prime is 135686777. The next prime is 135686813. The reversal of 135686804 is 408686531.

135686804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29492 + ... + 33780.

It is an arithmetic number, because the mean of its divisors is an integer number (10810800).

Almost surely, 2^135686804 is an apocalyptic number.

It is an amenable number.

135686804 is a deficient number, since it is larger than the sum of its proper divisors (123772396).

135686804 is a wasteful number, since it uses less digits than its factorization.

135686804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 135686804 is about 11648.4678820865. The cubic root of 135686804 is about 513.8612524007.

The spelling of 135686804 in words is "one hundred thirty-five million, six hundred eighty-six thousand, eight hundred four".