133465984 has 16 divisors (see below), whose sum is σ = 265889520. Its totient is φ = 66732928.

The previous prime is 133465979. The next prime is 133466027. The reversal of 133465984 is 489564331.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 133465984.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 521224 + ... + 521479.

It is an arithmetic number, because the mean of its divisors is an integer number (16618095).

Almost surely, 2^133465984 is an apocalyptic number.

It is an amenable number.

133465984 is a deficient number, since it is larger than the sum of its proper divisors (132423536).

133465984 is an equidigital number, since it uses as much as digits as its factorization.

133465984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042717 (or 1042705 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 133465984 is about 11552.7478982275. The cubic root of 133465984 is about 511.0423178713.

The spelling of 133465984 in words is "one hundred thirty-three million, four hundred sixty-five thousand, nine hundred eighty-four".