117243 has 12 divisors (see below), whose sum is σ = 193648. Its totient is φ = 66960.

The previous prime is 117241. The next prime is 117251. The reversal of 117243 is 342711.

It is not a de Polignac number, because 117243 - 2¹ = 117241 is a prime.

117243 is a modest number, since divided by 243 gives 117 as remainder.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (117241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868 + ... + 993.

2¹¹⁷²⁴³ is an apocalyptic number.

117243 is a deficient number, since it is larger than the sum of its proper divisors (76405).

117243 is a wasteful number, since it uses less digits than its factorization.

117243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874 (or 1871 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 117243 is about 342.4076517837. The cubic root of 117243 is about 48.9435696342.

Adding to 117243 its reverse (342711), we get a palindrome (459954).

The spelling of 117243 in words is "one hundred seventeen thousand, two hundred forty-three", and thus it is an iban number.