118663 has 4 divisors (see below), whose sum is σ = 119880. Its totient is φ = 117448.

The previous prime is 118661. The next prime is 118669. The reversal of 118663 is 366811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118663 - 2¹ = 118661 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (29970).

2¹¹⁸⁶⁶³ is an apocalyptic number.

118663 is a deficient number, since it is larger than the sum of its proper divisors (1217).

118663 is a wasteful number, since it uses less digits than its factorization.

118663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216.

The product of its digits is 864, while the sum is 25.

The square root of 118663 is about 344.4749628057. The cubic root of 118663 is about 49.1403721637.

The spelling of 118663 in words is "one hundred eighteen thousand, six hundred sixty-three".