133956163 has 8 divisors (see below), whose sum is σ = 152487936. Its totient is φ = 116483400.

The previous prime is 133956161. The next prime is 133956187. The reversal of 133956163 is 361659331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133956163 - 2¹ = 133956161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133956161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264483 + ... + 264988.

It is an arithmetic number, because the mean of its divisors is an integer number (19060992).

Almost surely, 2^133956163 is an apocalyptic number.

133956163 is a deficient number, since it is larger than the sum of its proper divisors (18531773).

133956163 is a wasteful number, since it uses less digits than its factorization.

133956163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529505.

The product of its digits is 43740, while the sum is 37.

The square root of 133956163 is about 11573.9432778980. The cubic root of 133956163 is about 511.6671866127.

The spelling of 133956163 in words is "one hundred thirty-three million, nine hundred fifty-six thousand, one hundred sixty-three".