198043275 has 12 divisors (see below), whose sum is σ = 327431672. Its totient is φ = 105623040.

The previous prime is 198043259. The next prime is 198043301. The reversal of 198043275 is 572340891.

It is not a de Polignac number, because 198043275 - 2⁴ = 198043259 is a prime.

It is a super-2 number, since 2×198043275² = 78442277545451250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 1320214 + ... + 1320363.

Almost surely, 2^198043275 is an apocalyptic number.

198043275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198043275 is a deficient number, since it is larger than the sum of its proper divisors (129388397).

198043275 is a wasteful number, since it uses less digits than its factorization.

198043275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640590 (or 2640585 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 198043275 is about 14072.7849056255. The cubic root of 198043275 is about 582.8901277452.

The spelling of 198043275 in words is "one hundred ninety-eight million, forty-three thousand, two hundred seventy-five".