136136838 has 16 divisors (see below), whose sum is σ = 279632880. Its totient is φ = 44152416.

The previous prime is 136136837. The next prime is 136136857. The reversal of 136136838 is 838631631.

It is a junction number, because it is equal to n+sod(n) for n = 136136796 and 136136805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136136837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306393 + ... + 306836.

It is an arithmetic number, because the mean of its divisors is an integer number (17477055).

Almost surely, 2^136136838 is an apocalyptic number.

136136838 is an abundant number, since it is smaller than the sum of its proper divisors (143496042).

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

136136838 is a wasteful number, since it uses less digits than its factorization.

136136838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613271.

The product of its digits is 62208, while the sum is 39.

The square root of 136136838 is about 11667.7691955232. The cubic root of 136136838 is about 514.4287353329.

The spelling of 136136838 in words is "one hundred thirty-six million, one hundred thirty-six thousand, eight hundred thirty-eight".