133873158 has 8 divisors (see below), whose sum is σ = 267746328. Its totient is φ = 44624384.

The previous prime is 133873153. The next prime is 133873189. The reversal of 133873158 is 851378331.

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

133873158 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133873153) 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 3 ways as a sum of consecutive naturals, for example, 11156091 + ... + 11156102.

It is an arithmetic number, because the mean of its divisors is an integer number (33468291).

Almost surely, 2^133873158 is an apocalyptic number.

133873158 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.

133873158 is a wasteful number, since it uses less digits than its factorization.

133873158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22312198.

The product of its digits is 60480, while the sum is 39.

The square root of 133873158 is about 11570.3568657151. The cubic root of 133873158 is about 511.5614811113.

The spelling of 133873158 in words is "one hundred thirty-three million, eight hundred seventy-three thousand, one hundred fifty-eight".