168006133 has 4 divisors (see below), whose sum is σ = 168048108. Its totient is φ = 167964160.

The previous prime is 168006109. The next prime is 168006173. The reversal of 168006133 is 331600861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331600861 = 17 ⋅19505933.

It can be written as a sum of positive squares in 2 ways, for example, as 86248369 + 81757764 = 9287^2 + 9042^2 .

It is a cyclic number.

It is not a de Polignac number, because 168006133 - 2¹³ = 167997941 is a prime.

It is a super-2 number, since 2×168006133² = 56452121451227378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168006173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14266 + ... + 23227.

It is an arithmetic number, because the mean of its divisors is an integer number (42012027).

Almost surely, 2^168006133 is an apocalyptic number.

It is an amenable number.

168006133 is a deficient number, since it is larger than the sum of its proper divisors (41975).

168006133 is an equidigital number, since it uses as much as digits as its factorization.

168006133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41974.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 168006133 is about 12961.7179802679. The cubic root of 168006133 is about 551.7915496715.

Adding to 168006133 its reverse (331600861), we get a palindrome (499606994).

The spelling of 168006133 in words is "one hundred sixty-eight million, six thousand, one hundred thirty-three".