133553168 has 40 divisors (see below), whose sum is σ = 296266752. Its totient is φ = 57132288.

The previous prime is 133553159. The next prime is 133553183. The reversal of 133553168 is 861355331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121196 + ... + 122292.

Almost surely, 2^133553168 is an apocalyptic number.

It is an amenable number.

133553168 is an abundant number, since it is smaller than the sum of its proper divisors (162713584).

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

133553168 is a wasteful number, since it uses less digits than its factorization.

133553168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2193 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 133553168 is about 11556.5205836359. The cubic root of 133553168 is about 511.1535697277.

The spelling of 133553168 in words is "one hundred thirty-three million, five hundred fifty-three thousand, one hundred sixty-eight".