133000168 has 64 divisors (see below), whose sum is σ = 307077120. Its totient is φ = 52747200.

The previous prime is 133000157. The next prime is 133000169. The reversal of 133000168 is 861000331.

It is not an unprimeable number, because it can be changed into a prime (133000169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38263 + ... + 41593.

It is an arithmetic number, because the mean of its divisors is an integer number (4798080).

Almost surely, 2^133000168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133000168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153538560).

133000168 is an abundant number, since it is smaller than the sum of its proper divisors (174076952).

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

133000168 is a wasteful number, since it uses less digits than its factorization.

133000168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 133000168 is about 11532.5698783922. The cubic root of 133000168 is about 510.4470871251.

Adding to 133000168 its reverse (861000331), we get a palindrome (994000499).

The spelling of 133000168 in words is "one hundred thirty-three million, one hundred sixty-eight", and thus it is an aban number.