133271604 has 36 divisors (see below), whose sum is σ = 347751040. Its totient is φ = 42990480.

The previous prime is 133271599. The next prime is 133271651. The reversal of 133271604 is 406172331.

133271604 is a `hidden beast` number, since 1 + 33 + 27 + 1 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×133271604² = 35522640865465632, which contains 22 as substring.

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 in 11 ways as a sum of consecutive naturals, for example, 58594 + ... + 60825.

Almost surely, 2^133271604 is an apocalyptic number.

It is an amenable number.

133271604 is an abundant number, since it is smaller than the sum of its proper divisors (214479436).

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

133271604 is a wasteful number, since it uses less digits than its factorization.

133271604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119460 (or 119455 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 133271604 is about 11544.3321158047. The cubic root of 133271604 is about 510.7941031418.

The spelling of 133271604 in words is "one hundred thirty-three million, two hundred seventy-one thousand, six hundred four".