133189958 has 8 divisors (see below), whose sum is σ = 217947240. Its totient is φ = 60540880.

The previous prime is 133189957. The next prime is 133189967. The reversal of 133189958 is 859981331.

133189958 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133189957) 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 3 ways as a sum of consecutive naturals, for example, 3027023 + ... + 3027066.

It is an arithmetic number, because the mean of its divisors is an integer number (27243405).

Almost surely, 2^133189958 is an apocalyptic number.

133189958 is a deficient number, since it is larger than the sum of its proper divisors (84757282).

133189958 is a wasteful number, since it uses less digits than its factorization.

133189958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054102.

The product of its digits is 233280, while the sum is 47.

The square root of 133189958 is about 11540.7953798688. The cubic root of 133189958 is about 510.6897728033.

It can be divided in two parts, 133 and 189958, that added together give a palindrome (190091).

The spelling of 133189958 in words is "one hundred thirty-three million, one hundred eighty-nine thousand, nine hundred fifty-eight".