136136128 has 56 divisors (see below), whose sum is σ = 283829760. Its totient is φ = 64700160.

The previous prime is 136136101. The next prime is 136136141. The reversal of 136136128 is 821631631.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 136136128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116475 + ... + 117637.

Almost surely, 2^136136128 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 136136128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141914880).

136136128 is an abundant number, since it is smaller than the sum of its proper divisors (147693632).

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

136136128 is a wasteful number, since it uses less digits than its factorization.

136136128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265 (or 1255 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 136136128 is about 11667.7387697874. The cubic root of 136136128 is about 514.4278410243.

Adding to 136136128 its reverse (821631631), we get a palindrome (957767759).

The spelling of 136136128 in words is "one hundred thirty-six million, one hundred thirty-six thousand, one hundred twenty-eight".