133339168 has 48 divisors (see below), whose sum is σ = 270357696. Its totient is φ = 64707840.

The previous prime is 133339163. The next prime is 133339183. The reversal of 133339168 is 861933331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133339163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161605 + ... + 162427.

It is an arithmetic number, because the mean of its divisors is an integer number (5632452).

Almost surely, 2^133339168 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 133339168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135178848).

133339168 is an abundant number, since it is smaller than the sum of its proper divisors (137018528).

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

133339168 is an equidigital number, since it uses as much as digits as its factorization.

133339168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 969 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 133339168 is about 11547.2580295064. The cubic root of 133339168 is about 510.8804067538.

The spelling of 133339168 in words is "one hundred thirty-three million, three hundred thirty-nine thousand, one hundred sixty-eight".