133503836 has 6 divisors (see below), whose sum is σ = 233631720. Its totient is φ = 66751916.

The previous prime is 133503833. The next prime is 133503841. The reversal of 133503836 is 638305331.

133503836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133503833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16687976 + ... + 16687983.

It is an arithmetic number, because the mean of its divisors is an integer number (38938620).

Almost surely, 2^133503836 is an apocalyptic number.

It is an amenable number.

133503836 is a deficient number, since it is larger than the sum of its proper divisors (100127884).

133503836 is a wasteful number, since it uses less digits than its factorization.

133503836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33375963 (or 33375961 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 133503836 is about 11554.3860070538. The cubic root of 133503836 is about 511.0906251748.

The spelling of 133503836 in words is "one hundred thirty-three million, five hundred three thousand, eight hundred thirty-six".