136020636 has 36 divisors (see below), whose sum is σ = 345290400. Its totient is φ = 45147648.

The previous prime is 136020623. The next prime is 136020637. The reversal of 136020636 is 636020631.

136020636 is a `hidden beast` number, since 1 + 3 + 6 + 0 + 20 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×136020636² = 37003226835688992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136020637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700 + ... + 16508.

It is an arithmetic number, because the mean of its divisors is an integer number (9591400).

Almost surely, 2^136020636 is an apocalyptic number.

It is an amenable number.

136020636 is an abundant number, since it is smaller than the sum of its proper divisors (209269764).

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

136020636 is a wasteful number, since it uses less digits than its factorization.

136020636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16058 (or 16053 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 136020636 is about 11662.7885173315. The cubic root of 136020636 is about 514.2823270941.

The spelling of 136020636 in words is "one hundred thirty-six million, twenty thousand, six hundred thirty-six".