136388 has 12 divisors (see below), whose sum is σ = 272832. Its totient is φ = 58440.

The previous prime is 136379. The next prime is 136393. The reversal of 136388 is 883631.

136388 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 136388.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136388.

It is an unprimeable number.

136388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (22736).

2¹³⁶³⁸⁸ is an apocalyptic number.

It is an amenable number.

136388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

136388 is a wasteful number, since it uses less digits than its factorization.

136388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882 (or 4880 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 136388 is about 369.3074599842. The cubic root of 136388 is about 51.4744901468.

The spelling of 136388 in words is "one hundred thirty-six thousand, three hundred eighty-eight".