609136772 has 12 divisors (see below), whose sum is σ = 1094800140. Its totient is φ = 296336736.

The previous prime is 609136733. The next prime is 609136777. The reversal of 609136772 is 277631906.

It can be written as a sum of positive squares in 2 ways, for example, as 500685376 + 108451396 = 22376^2 + 10414^2 .

It is not an unprimeable number, because it can be changed into a prime (609136777) 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 3 ways as a sum of consecutive naturals, for example, 2057747 + ... + 2058042.

It is an arithmetic number, because the mean of its divisors is an integer number (91233345).

Almost surely, 2^609136772 is an apocalyptic number.

It is an amenable number.

609136772 is a deficient number, since it is larger than the sum of its proper divisors (485663368).

609136772 is a wasteful number, since it uses less digits than its factorization.

609136772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115830 (or 4115828 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 609136772 is about 24680.6963434989. The cubic root of 609136772 is about 847.6923668295.

The spelling of 609136772 in words is "six hundred nine million, one hundred thirty-six thousand, seven hundred seventy-two".