194968198 has 4 divisors (see below), whose sum is σ = 292452300. Its totient is φ = 97484098.

The previous prime is 194968187. The next prime is 194968229. The reversal of 194968198 is 891869491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891869491 = 101 ⋅8830391.

It is a super-3 number, since 3×194968198³ (a number of 26 digits) contains 333 as substring.

It is a congruent 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 as a sum of consecutive naturals, namely, 48742048 + ... + 48742051.

It is an arithmetic number, because the mean of its divisors is an integer number (73113075).

Almost surely, 2^194968198 is an apocalyptic number.

194968198 is a deficient number, since it is larger than the sum of its proper divisors (97484102).

194968198 is an equidigital number, since it uses as much as digits as its factorization.

194968198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97484101.

The product of its digits is 1119744, while the sum is 55.

The square root of 194968198 is about 13963.1013030773. The cubic root of 194968198 is about 579.8574738972.

The spelling of 194968198 in words is "one hundred ninety-four million, nine hundred sixty-eight thousand, one hundred ninety-eight".