135069636 has 48 divisors (see below), whose sum is σ = 341902400. Its totient is φ = 41254272.

The previous prime is 135069629. The next prime is 135069667. The reversal of 135069636 is 636960531.

135069636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 135069594 and 135069603.

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, 18570 + ... + 24798.

Almost surely, 2^135069636 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 135069636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170951200).

135069636 is an abundant number, since it is smaller than the sum of its proper divisors (206832764).

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

135069636 is a wasteful number, since it uses less digits than its factorization.

135069636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388 (or 6386 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 135069636 is about 11621.9463086008. The cubic root of 135069636 is about 513.0809732007.

The spelling of 135069636 in words is "one hundred thirty-five million, sixty-nine thousand, six hundred thirty-six".