135220684 has 12 divisors (see below), whose sum is σ = 240647400. Its totient is φ = 66464288.

The previous prime is 135220627. The next prime is 135220697. The reversal of 135220684 is 486022531.

135220684 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286249 + ... + 286720.

It is an arithmetic number, because the mean of its divisors is an integer number (20053950).

Almost surely, 2^135220684 is an apocalyptic number.

It is an amenable number.

135220684 is a deficient number, since it is larger than the sum of its proper divisors (105426716).

135220684 is a wasteful number, since it uses less digits than its factorization.

135220684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573032 (or 573030 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 135220684 is about 11628.4428880225. The cubic root of 135220684 is about 513.2721609608.

The spelling of 135220684 in words is "one hundred thirty-five million, two hundred twenty thousand, six hundred eighty-four".