117533 has 4 divisors (see below), whose sum is σ = 126588. Its totient is φ = 108480.

The previous prime is 117529. The next prime is 117539. The reversal of 117533 is 335711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335711 = 19 ⋅17669.

It can be written as a sum of positive squares in 2 ways, for example, as 76729 + 40804 = 277^2 + 202^2 .

It is a cyclic number.

It is not a de Polignac number, because 117533 - 2² = 117529 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117539) 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, 4508 + ... + 4533.

It is an arithmetic number, because the mean of its divisors is an integer number (31647).

2¹¹⁷⁵³³ is an apocalyptic number.

117533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

117533 is a deficient number, since it is larger than the sum of its proper divisors (9055).

117533 is an equidigital number, since it uses as much as digits as its factorization.

117533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054.

The product of its digits is 315, while the sum is 20.

The square root of 117533 is about 342.8308620880. The cubic root of 117533 is about 48.9838903033.

The spelling of 117533 in words is "one hundred seventeen thousand, five hundred thirty-three".