168533 has 2 divisors, whose sum is σ = 168534. Its totient is φ = 168532.

The previous prime is 168527. The next prime is 168541. The reversal of 168533 is 335861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114244 + 54289 = 338^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 168533 - 2⁸ = 168277 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84266 + 84267.

It is an arithmetic number, because the mean of its divisors is an integer number (84267).

2¹⁶⁸⁵³³ is an apocalyptic number.

It is an amenable number.

168533 is a deficient number, since it is larger than the sum of its proper divisors (1).

168533 is an equidigital number, since it uses as much as digits as its factorization.

168533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 168533 is about 410.5277091744. The cubic root of 168533 is about 55.2367753610.

The spelling of 168533 in words is "one hundred sixty-eight thousand, five hundred thirty-three".