196518 has 16 divisors (see below), whose sum is σ = 449280. Its totient is φ = 56136.

The previous prime is 196501. The next prime is 196519. The reversal of 196518 is 815691.

It is a happy number.

196518 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

196518 is a modest number, since divided by 518 gives 196 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298 + ... + 2381.

It is an arithmetic number, because the mean of its divisors is an integer number (28080).

196518 is a Friedman number, since it can be written as 1-91+8^5*6, using all its digits and the basic arithmetic operations.

2¹⁹⁶⁵¹⁸ is an apocalyptic number.

196518 is an abundant number, since it is smaller than the sum of its proper divisors (252762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196518 is a wasteful number, since it uses less digits than its factorization.

196518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its digits is 2160, while the sum is 30.

The square root of 196518 is about 443.3035077687. The cubic root of 196518 is about 58.1389849573.

The spelling of 196518 in words is "one hundred ninety-six thousand, five hundred eighteen".