168133155 has 32 divisors (see below), whose sum is σ = 279417600. Its totient is φ = 86228352.

The previous prime is 168133127. The next prime is 168133157. The reversal of 168133155 is 551331861.

It is not a de Polignac number, because 168133155 - 2⁵ = 168133123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168133157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132916 + ... + 134174.

It is an arithmetic number, because the mean of its divisors is an integer number (8731800).

Almost surely, 2^168133155 is an apocalyptic number.

168133155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

168133155 is a deficient number, since it is larger than the sum of its proper divisors (111284445).

168133155 is a wasteful number, since it uses less digits than its factorization.

168133155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603.

The product of its digits is 10800, while the sum is 33.

The square root of 168133155 is about 12966.6169450632. The cubic root of 168133155 is about 551.9305763615.

The spelling of 168133155 in words is "one hundred sixty-eight million, one hundred thirty-three thousand, one hundred fifty-five".