133115384 has 8 divisors (see below), whose sum is σ = 249591360. Its totient is φ = 66557688.

The previous prime is 133115371. The next prime is 133115393. The reversal of 133115384 is 483511331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8319704 + ... + 8319719.

It is an arithmetic number, because the mean of its divisors is an integer number (31198920).

Almost surely, 2^133115384 is an apocalyptic number.

It is an amenable number.

133115384 is a deficient number, since it is larger than the sum of its proper divisors (116475976).

133115384 is a wasteful number, since it uses less digits than its factorization.

133115384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16639429 (or 16639425 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 133115384 is about 11537.5640409924. The cubic root of 133115384 is about 510.5944420698.

The spelling of 133115384 in words is "one hundred thirty-three million, one hundred fifteen thousand, three hundred eighty-four".