133584172 has 6 divisors (see below), whose sum is σ = 233772308. Its totient is φ = 66792084.

The previous prime is 133584169. The next prime is 133584197. The reversal of 133584172 is 271485331.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16698018 + ... + 16698025.

Almost surely, 2^133584172 is an apocalyptic number.

It is an amenable number.

133584172 is a deficient number, since it is larger than the sum of its proper divisors (100188136).

133584172 is a wasteful number, since it uses less digits than its factorization.

133584172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33396047 (or 33396045 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 133584172 is about 11557.8619130010. The cubic root of 133584172 is about 511.1931209650.

The spelling of 133584172 in words is "one hundred thirty-three million, five hundred eighty-four thousand, one hundred seventy-two".