133539916 has 6 divisors (see below), whose sum is σ = 233694860. Its totient is φ = 66769956.

The previous prime is 133539893. The next prime is 133539929. The reversal of 133539916 is 619935331.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16692486 + ... + 16692493.

Almost surely, 2^133539916 is an apocalyptic number.

It is an amenable number.

133539916 is a deficient number, since it is larger than the sum of its proper divisors (100154944).

133539916 is a wasteful number, since it uses less digits than its factorization.

133539916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33384983 (or 33384981 counting only the distinct ones).

The product of its digits is 65610, while the sum is 40.

The square root of 133539916 is about 11555.9472134481. The cubic root of 133539916 is about 511.1366625257.

The spelling of 133539916 in words is "one hundred thirty-three million, five hundred thirty-nine thousand, nine hundred sixteen".