133116168 has 32 divisors (see below), whose sum is σ = 333302400. Its totient is φ = 44303808.

The previous prime is 133116161. The next prime is 133116169. The reversal of 133116168 is 861611331.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (133116161) 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, 13105 + ... + 20927.

It is an arithmetic number, because the mean of its divisors is an integer number (10415700).

Almost surely, 2^133116168 is an apocalyptic number.

It is an amenable number.

133116168 is an abundant number, since it is smaller than the sum of its proper divisors (200186232).

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

133116168 is a wasteful number, since it uses less digits than its factorization.

133116168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541 (or 8537 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 133116168 is about 11537.5980169184. The cubic root of 133116168 is about 510.5954444715.

Adding to 133116168 its reverse (861611331), we get a palindrome (994727499).

The spelling of 133116168 in words is "one hundred thirty-three million, one hundred sixteen thousand, one hundred sixty-eight".