133125558 has 8 divisors (see below), whose sum is σ = 266251128. Its totient is φ = 44375184.

The previous prime is 133125557. The next prime is 133125581. The reversal of 133125558 is 855521331.

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

133125558 is an admirable number.

It is a super-3 number, since 3×133125558³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133125557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11093791 + ... + 11093802.

It is an arithmetic number, because the mean of its divisors is an integer number (33281391).

Almost surely, 2^133125558 is an apocalyptic number.

133125558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133125558 is a wasteful number, since it uses less digits than its factorization.

133125558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22187598.

The product of its digits is 18000, while the sum is 33.

The square root of 133125558 is about 11538.0049401966. The cubic root of 133125558 is about 510.6074499715.

Adding to 133125558 its reverse (855521331), we get a palindrome (988646889).

The spelling of 133125558 in words is "one hundred thirty-three million, one hundred twenty-five thousand, five hundred fifty-eight".