118517 has 4 divisors (see below), whose sum is σ = 135456. Its totient is φ = 101580.

The previous prime is 118493. The next prime is 118529. The reversal of 118517 is 715811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118517 - 2⁶ = 118453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118492 and 118501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118717) 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, 8459 + ... + 8472.

It is an arithmetic number, because the mean of its divisors is an integer number (33864).

2¹¹⁸⁵¹⁷ is an apocalyptic number.

It is an amenable number.

118517 is a deficient number, since it is larger than the sum of its proper divisors (16939).

118517 is an equidigital number, since it uses as much as digits as its factorization.

118517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16938.

The product of its digits is 280, while the sum is 23.

The square root of 118517 is about 344.2629808736. The cubic root of 118517 is about 49.1202101958.

The spelling of 118517 in words is "one hundred eighteen thousand, five hundred seventeen".