133805319 has 8 divisors (see below), whose sum is σ = 180074880. Its totient is φ = 88369656.

The previous prime is 133805311. The next prime is 133805323. The reversal of 133805319 is 913508331.

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

It is not a de Polignac number, because 133805319 - 2³ = 133805311 is a prime.

It is a super-2 number, since 2×133805319² = 35807726785383522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133805319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133805311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208099 + ... + 208740.

It is an arithmetic number, because the mean of its divisors is an integer number (22509360).

Almost surely, 2^133805319 is an apocalyptic number.

133805319 is a deficient number, since it is larger than the sum of its proper divisors (46269561).

133805319 is a wasteful number, since it uses less digits than its factorization.

133805319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416949.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 133805319 is about 11567.4249079041. The cubic root of 133805319 is about 511.4750568088.

The spelling of 133805319 in words is "one hundred thirty-three million, eight hundred five thousand, three hundred nineteen".