135684685 has 8 divisors (see below), whose sum is σ = 163732320. Its totient is φ = 107940624.

The previous prime is 135684677. The next prime is 135684727. The reversal of 135684685 is 586486531.

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

It is a cyclic number.

It is not a de Polignac number, because 135684685 - 2³ = 135684677 is a prime.

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, 74907 + ... + 76696.

It is an arithmetic number, because the mean of its divisors is an integer number (20466540).

Almost surely, 2^135684685 is an apocalyptic number.

It is an amenable number.

135684685 is a deficient number, since it is larger than the sum of its proper divisors (28047635).

135684685 is a wasteful number, since it uses less digits than its factorization.

135684685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151787.

The product of its digits is 691200, while the sum is 46.

The square root of 135684685 is about 11648.3769255635. The cubic root of 135684685 is about 513.8585774227.

The spelling of 135684685 in words is "one hundred thirty-five million, six hundred eighty-four thousand, six hundred eighty-five".