136561604 has 12 divisors (see below), whose sum is σ = 240304428. Its totient is φ = 67903200.

The previous prime is 136561597. The next prime is 136561637. The reversal of 136561604 is 406165631.

136561604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56280004 + 80281600 = 7502^2 + 8960^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 93587 + ... + 95034.

It is an arithmetic number, because the mean of its divisors is an integer number (20025369).

Almost surely, 2^136561604 is an apocalyptic number.

It is an amenable number.

136561604 is a deficient number, since it is larger than the sum of its proper divisors (103742824).

136561604 is a wasteful number, since it uses less digits than its factorization.

136561604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188806 (or 188804 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 136561604 is about 11685.9575559729. The cubic root of 136561604 is about 514.9632097387.

The spelling of 136561604 in words is "one hundred thirty-six million, five hundred sixty-one thousand, six hundred four".