196319918 has 8 divisors (see below), whose sum is σ = 294878448. Its totient is φ = 98027104.

The previous prime is 196319911. The next prime is 196319939. The reversal of 196319918 is 819913691.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196319911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64571 + ... + 67542.

It is an arithmetic number, because the mean of its divisors is an integer number (36859806).

Almost surely, 2^196319918 is an apocalyptic number.

196319918 is a deficient number, since it is larger than the sum of its proper divisors (98558530).

196319918 is a wasteful number, since it uses less digits than its factorization.

196319918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132858.

The product of its digits is 104976, while the sum is 47.

The square root of 196319918 is about 14011.4209843256. The cubic root of 196319918 is about 581.1944449466.

The spelling of 196319918 in words is "one hundred ninety-six million, three hundred nineteen thousand, nine hundred eighteen".