135645020 has 96 divisors (see below), whose sum is σ = 336825216. Its totient is φ = 44928000.

The previous prime is 135645019. The next prime is 135645043. The reversal of 135645020 is 20546531.

135645020 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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 749330 + ... + 749510.

It is an arithmetic number, because the mean of its divisors is an integer number (3508596).

Almost surely, 2^135645020 is an apocalyptic number.

135645020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135645020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168412608).

135645020 is an abundant number, since it is smaller than the sum of its proper divisors (201180196).

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

135645020 is a wasteful number, since it uses less digits than its factorization.

135645020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 135645020 is about 11646.6742033939. The cubic root of 135645020 is about 513.8085000763.

The spelling of 135645020 in words is "one hundred thirty-five million, six hundred forty-five thousand, twenty".