118193 has 4 divisors (see below), whose sum is σ = 119028. Its totient is φ = 117360.

The previous prime is 118189. The next prime is 118211. The reversal of 118193 is 391811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10609 + 107584 = 103^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 118193 - 2² = 118189 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 (118163) 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, 146 + ... + 507.

It is an arithmetic number, because the mean of its divisors is an integer number (29757).

2¹¹⁸¹⁹³ is an apocalyptic number.

It is an amenable number.

118193 is a deficient number, since it is larger than the sum of its proper divisors (835).

118193 is an equidigital number, since it uses as much as digits as its factorization.

118193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834.

The product of its digits is 216, while the sum is 23.

The square root of 118193 is about 343.7920883325. The cubic root of 118193 is about 49.0754079794.

The spelling of 118193 in words is "one hundred eighteen thousand, one hundred ninety-three".