133131158 has 8 divisors (see below), whose sum is σ = 202970640. Its totient is φ = 65474280.

The previous prime is 133131149. The next prime is 133131161. The reversal of 133131158 is 851131331.

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

It is a congruent number.

It is an unprimeable number.

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, 545498 + ... + 545741.

It is an arithmetic number, because the mean of its divisors is an integer number (25371330).

Almost surely, 2^133131158 is an apocalyptic number.

133131158 is a deficient number, since it is larger than the sum of its proper divisors (69839482).

133131158 is a wasteful number, since it uses less digits than its factorization.

133131158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091302.

The product of its digits is 1080, while the sum is 26.

The square root of 133131158 is about 11538.2476139143. The cubic root of 133131158 is about 510.6146095325.

Adding to 133131158 its reverse (851131331), we get a palindrome (984262489).

The spelling of 133131158 in words is "one hundred thirty-three million, one hundred thirty-one thousand, one hundred fifty-eight".