118173 has 8 divisors (see below), whose sum is σ = 171936. Its totient is φ = 71600.

The previous prime is 118171. The next prime is 118189. The reversal of 118173 is 371811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118173 - 2¹ = 118171 is a prime.

It is a d-powerful number, because it can be written as 1 + 1 + 1 + 8³ + 7⁶ + 3² .

118173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118171) 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 7 ways as a sum of consecutive naturals, for example, 1758 + ... + 1823.

It is an arithmetic number, because the mean of its divisors is an integer number (21492).

2¹¹⁸¹⁷³ is an apocalyptic number.

It is an amenable number.

118173 is a deficient number, since it is larger than the sum of its proper divisors (53763).

118173 is a wasteful number, since it uses less digits than its factorization.

118173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595.

The product of its digits is 168, while the sum is 21.

The square root of 118173 is about 343.7629997542. The cubic root of 118173 is about 49.0726397288.

Adding to 118173 its product of digits (168), we get a triangular number (118341 = T₄₈₆).

Adding to 118173 its reverse (371811), we get a palindrome (489984).

The spelling of 118173 in words is "one hundred eighteen thousand, one hundred seventy-three".