136445636 has 12 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 68155080.

The previous prime is 136445629. The next prime is 136445641. The reversal of 136445636 is 636544631.

It is a self number, because there is not a number n which added to its sum of digits gives 136445636.

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 3 ways as a sum of consecutive naturals, for example, 12260 + ... + 20571.

It is an arithmetic number, because the mean of its divisors is an integer number (19918080).

Almost surely, 2^136445636 is an apocalyptic number.

It is an amenable number.

136445636 is a deficient number, since it is larger than the sum of its proper divisors (102571324).

136445636 is a wasteful number, since it uses less digits than its factorization.

136445636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33874 (or 33872 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 136445636 is about 11680.9946494295. The cubic root of 136445636 is about 514.8173996812.

The spelling of 136445636 in words is "one hundred thirty-six million, four hundred forty-five thousand, six hundred thirty-six".