203668136 has 32 divisors (see below), whose sum is σ = 438271680. Its totient is φ = 86918400.

The previous prime is 203668133. The next prime is 203668159. The reversal of 203668136 is 631866302.

203668136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 203668096 and 203668105.

It is not an unprimeable number, because it can be changed into a prime (203668133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5951 + ... + 21041.

It is an arithmetic number, because the mean of its divisors is an integer number (13695990).

Almost surely, 2^203668136 is an apocalyptic number.

It is an amenable number.

203668136 is an abundant number, since it is smaller than the sum of its proper divisors (234603544).

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

203668136 is a wasteful number, since it uses less digits than its factorization.

203668136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15345 (or 15341 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 203668136 is about 14271.2345646759. The cubic root of 203668136 is about 588.3571418503.

The spelling of 203668136 in words is "two hundred three million, six hundred sixty-eight thousand, one hundred thirty-six".