135136188 has 126 divisors (see below), whose sum is σ = 390751872. Its totient is φ = 40843440.

The previous prime is 135136163. The next prime is 135136219. The reversal of 135136188 is 881631531.

135136188 is a `hidden beast` number, since 1 + 3 + 513 + 61 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 41 ways as a sum of consecutive naturals, for example, 352645 + ... + 353027.

Almost surely, 2^135136188 is an apocalyptic number.

135136188 is a gapful number since it is divisible by the number (18) 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 135136188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195375936).

135136188 is an abundant number, since it is smaller than the sum of its proper divisors (255615684).

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

135136188 is a wasteful number, since it uses less digits than its factorization.

135136188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 399 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 135136188 is about 11624.8091597239. The cubic root of 135136188 is about 513.1652284022.

It can be divided in two parts, 13513 and 6188, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 135136188 in words is "one hundred thirty-five million, one hundred thirty-six thousand, one hundred eighty-eight".