197418994 has 8 divisors (see below), whose sum is σ = 313547868. Its totient is φ = 92903040.

The previous prime is 197418953. The next prime is 197419007. The reversal of 197418994 is 499814791.

It can be written as a sum of positive squares in 2 ways, for example, as 156625225 + 40793769 = 12515^2 + 6387^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 2903187 + ... + 2903254.

Almost surely, 2^197418994 is an apocalyptic number.

197418994 is a deficient number, since it is larger than the sum of its proper divisors (116128874).

197418994 is a wasteful number, since it uses less digits than its factorization.

197418994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806460.

The product of its digits is 653184, while the sum is 52.

The square root of 197418994 is about 14050.5869628283. The cubic root of 197418994 is about 582.2770121575.

The spelling of 197418994 in words is "one hundred ninety-seven million, four hundred eighteen thousand, nine hundred ninety-four".