133163 has 8 divisors (see below), whose sum is σ = 141360. Its totient is φ = 125280.

The previous prime is 133157. The next prime is 133169. The reversal of 133163 is 361331.

It is an interprime number because it is at equal distance from previous prime (133157) and next prime (133169).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133163 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (133169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 2213.

It is an arithmetic number, because the mean of its divisors is an integer number (17670).

2¹³³¹⁶³ is an apocalyptic number.

133163 is a deficient number, since it is larger than the sum of its proper divisors (8197).

133163 is an equidigital number, since it uses as much as digits as its factorization.

133163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157.

The product of its digits is 162, while the sum is 17.

The square root of 133163 is about 364.9150586095. The cubic root of 133163 is about 51.0655315491.

Adding to 133163 its reverse (361331), we get a palindrome (494494).

The spelling of 133163 in words is "one hundred thirty-three thousand, one hundred sixty-three".