118385 has 4 divisors (see below), whose sum is σ = 142068. Its totient is φ = 94704.

The previous prime is 118373. The next prime is 118387. The reversal of 118385 is 583811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583811 = 43 ⋅13577.

It can be written as a sum of positive squares in 2 ways, for example, as 44944 + 73441 = 212^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 118385 - 2⁴ = 118369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (118387) 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, 11834 + ... + 11843.

It is an arithmetic number, because the mean of its divisors is an integer number (35517).

2¹¹⁸³⁸⁵ is an apocalyptic number.

It is an amenable number.

118385 is a deficient number, since it is larger than the sum of its proper divisors (23683).

118385 is an equidigital number, since it uses as much as digits as its factorization.

118385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23682.

The product of its digits is 960, while the sum is 26.

The square root of 118385 is about 344.0712135591. The cubic root of 118385 is about 49.1019673097.

It can be divided in two parts, 11 and 8385, that multiplied together give a triangular number (92235 = T₄₂₉).

The spelling of 118385 in words is "one hundred eighteen thousand, three hundred eighty-five".