136688796 has 90 divisors (see below), whose sum is σ = 370071240. Its totient is φ = 43992720.

The previous prime is 136688743. The next prime is 136688801. The reversal of 136688796 is 697886631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 311145 + ... + 311583.

Almost surely, 2^136688796 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 136688796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185035620).

136688796 is an abundant number, since it is smaller than the sum of its proper divisors (233382444).

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

136688796 is a wasteful number, since it uses less digits than its factorization.

136688796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 475 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 136688796 is about 11691.3983765844. The cubic root of 136688796 is about 515.1230371819.

The spelling of 136688796 in words is "one hundred thirty-six million, six hundred eighty-eight thousand, seven hundred ninety-six".