135506056 has 64 divisors (see below), whose sum is σ = 297665280. Its totient is φ = 56636160.

The previous prime is 135506047. The next prime is 135506089. The reversal of 135506056 is 650605531.

135506056 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687750 + ... + 687946.

It is an arithmetic number, because the mean of its divisors is an integer number (4651020).

Almost surely, 2^135506056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135506056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148832640).

135506056 is an abundant number, since it is smaller than the sum of its proper divisors (162159224).

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

135506056 is a wasteful number, since it uses less digits than its factorization.

135506056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 135506056 is about 11640.7068513901. The cubic root of 135506056 is about 513.6329799799.

The spelling of 135506056 in words is "one hundred thirty-five million, five hundred six thousand, fifty-six".