136686204 has 60 divisors (see below), whose sum is σ = 358850184. Its totient is φ = 45367776.

The previous prime is 136686197. The next prime is 136686211. The reversal of 136686204 is 402686631.

It is an interprime number because it is at equal distance from previous prime (136686197) and next prime (136686211).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 88987 + ... + 90509.

Almost surely, 2^136686204 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 136686204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179425092).

136686204 is an abundant number, since it is smaller than the sum of its proper divisors (222163980).

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

136686204 is a wasteful number, since it uses less digits than its factorization.

136686204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 136686204 is about 11691.2875253327. The cubic root of 136686204 is about 515.1197811058.

The spelling of 136686204 in words is "one hundred thirty-six million, six hundred eighty-six thousand, two hundred four".