136659328 has 64 divisors (see below), whose sum is σ = 310504320. Its totient is φ = 59351040.

The previous prime is 136659319. The next prime is 136659329. The reversal of 136659328 is 823956631.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136659329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25873 + ... + 30703.

It is an arithmetic number, because the mean of its divisors is an integer number (4851630).

Almost surely, 2^136659328 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 136659328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155252160).

136659328 is an abundant number, since it is smaller than the sum of its proper divisors (173844992).

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

136659328 is a wasteful number, since it uses less digits than its factorization.

136659328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4875 (or 4863 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 136659328 is about 11690.1380659084. The cubic root of 136659328 is about 515.0860169894.

The spelling of 136659328 in words is "one hundred thirty-six million, six hundred fifty-nine thousand, three hundred twenty-eight".