198495093 has 4 divisors (see below), whose sum is σ = 264660128. Its totient is φ = 132330060.

The previous prime is 198495091. The next prime is 198495107. The reversal of 198495093 is 390594891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 198495093 - 2¹ = 198495091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198495091) 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, 33082513 + ... + 33082518.

It is an arithmetic number, because the mean of its divisors is an integer number (66165032).

Almost surely, 2^198495093 is an apocalyptic number.

It is an amenable number.

198495093 is a deficient number, since it is larger than the sum of its proper divisors (66165035).

198495093 is an equidigital number, since it uses as much as digits as its factorization.

198495093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66165034.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 198495093 is about 14088.8286596154. The cubic root of 198495093 is about 583.3330616235. Note that the first 3 decimals are identical.

It can be divided in two parts, 19849 and 5093, that added together give a palindrome (24942).

The spelling of 198495093 in words is "one hundred ninety-eight million, four hundred ninety-five thousand, ninety-three".