163133 has 4 divisors (see below), whose sum is σ = 167580. Its totient is φ = 158688.

The previous prime is 163129. The next prime is 163147. The reversal of 163133 is 331361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331361 = 23 ⋅14407.

It can be written as a sum of positive squares in 2 ways, for example, as 77284 + 85849 = 278^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 163133 - 2² = 163129 is a prime.

It is a super-2 number, since 2×163133² = 53224751378, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168 + ... + 2241.

It is an arithmetic number, because the mean of its divisors is an integer number (41895).

2¹⁶³¹³³ is an apocalyptic number.

It is an amenable number.

163133 is a deficient number, since it is larger than the sum of its proper divisors (4447).

163133 is an equidigital number, since it uses as much as digits as its factorization.

163133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446.

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

The square root of 163133 is about 403.8972641650. The cubic root of 163133 is about 54.6404089312.

Adding to 163133 its reverse (331361), we get a palindrome (494494).

The spelling of 163133 in words is "one hundred sixty-three thousand, one hundred thirty-three".