198303146 has 4 divisors (see below), whose sum is σ = 297454722. Its totient is φ = 99151572.

The previous prime is 198303139. The next prime is 198303151. The reversal of 198303146 is 641303891.

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., 162435025 + 35868121 = 12745^2 + 5989^2 .

It is a super-4 number, since 4×198303146⁴ (a number of 34 digits) contains 4444 as substring.

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, 49575785 + ... + 49575788.

Almost surely, 2^198303146 is an apocalyptic number.

198303146 is a deficient number, since it is larger than the sum of its proper divisors (99151576).

198303146 is an equidigital number, since it uses as much as digits as its factorization.

198303146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99151575.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 198303146 is about 14082.0149836591. The cubic root of 198303146 is about 583.1449710924.

The spelling of 198303146 in words is "one hundred ninety-eight million, three hundred three thousand, one hundred forty-six".