196009018 has 4 divisors (see below), whose sum is σ = 294013530. Its totient is φ = 98004508.

The previous prime is 196008979. The next prime is 196009027. The reversal of 196009018 is 810900691.

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

It can be written as a sum of positive squares in only one way, i.e., 158835609 + 37173409 = 12603^2 + 6097^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49002253 + ... + 49002256.

Almost surely, 2^196009018 is an apocalyptic number.

196009018 is a deficient number, since it is larger than the sum of its proper divisors (98004512).

196009018 is an equidigital number, since it uses as much as digits as its factorization.

196009018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98004511.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 196009018 is about 14000.3220677240. The cubic root of 196009018 is about 580.8874820003.

The spelling of 196009018 in words is "one hundred ninety-six million, nine thousand, eighteen".