168787133 has 8 divisors (see below), whose sum is σ = 176256000. Its totient is φ = 161329168.

The previous prime is 168787123. The next prime is 168787147. The reversal of 168787133 is 331787861.

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

It is a cyclic number.

It is not a de Polignac number, because 168787133 - 2¹⁰ = 168786109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168787123) 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, 57188 + ... + 60066.

It is an arithmetic number, because the mean of its divisors is an integer number (22032000).

Almost surely, 2^168787133 is an apocalyptic number.

It is an amenable number.

168787133 is a deficient number, since it is larger than the sum of its proper divisors (7468867).

168787133 is a wasteful number, since it uses less digits than its factorization.

168787133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451.

The product of its digits is 169344, while the sum is 44.

The square root of 168787133 is about 12991.8102279859. The cubic root of 168787133 is about 552.6452549024.

The spelling of 168787133 in words is "one hundred sixty-eight million, seven hundred eighty-seven thousand, one hundred thirty-three".