136686198 has 24 divisors (see below), whose sum is σ = 300485304. Its totient is φ = 41419840.

The previous prime is 136686197. The next prime is 136686211. The reversal of 136686198 is 891686631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136686197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93411 + ... + 94862.

It is an arithmetic number, because the mean of its divisors is an integer number (12520221).

Almost surely, 2^136686198 is an apocalyptic number.

136686198 is an abundant number, since it is smaller than the sum of its proper divisors (163799106).

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

136686198 is a wasteful number, since it uses less digits than its factorization.

136686198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188300 (or 188289 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 136686198 is about 11691.2872687314. The cubic root of 136686198 is about 515.1197735686.

The spelling of 136686198 in words is "one hundred thirty-six million, six hundred eighty-six thousand, one hundred ninety-eight".