118345 has 4 divisors (see below), whose sum is σ = 142020. Its totient is φ = 94672.

The previous prime is 118343. The next prime is 118361. The reversal of 118345 is 543811.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41616 + 76729 = 204^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 118345 - 2¹ = 118343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118343) 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, 11830 + ... + 11839.

It is an arithmetic number, because the mean of its divisors is an integer number (35505).

2¹¹⁸³⁴⁵ is an apocalyptic number.

It is an amenable number.

118345 is a deficient number, since it is larger than the sum of its proper divisors (23675).

118345 is an equidigital number, since it uses as much as digits as its factorization.

118345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23674.

The product of its digits is 480, while the sum is 22.

The square root of 118345 is about 344.0130811466. The cubic root of 118345 is about 49.0964364853.

It can be divided in two parts, 1183 and 45, that multiplied together give a palindrome (53235).

The spelling of 118345 in words is "one hundred eighteen thousand, three hundred forty-five".