198071273 has 4 divisors (see below), whose sum is σ = 198191760. Its totient is φ = 197950788.

The previous prime is 198071227. The next prime is 198071299. The reversal of 198071273 is 372170891.

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 a cyclic number.

It is not a de Polignac number, because 198071273 - 2²⁶ = 130962409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198071473) 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, 57743 + ... + 61076.

It is an arithmetic number, because the mean of its divisors is an integer number (49547940).

Almost surely, 2^198071273 is an apocalyptic number.

It is an amenable number.

198071273 is a deficient number, since it is larger than the sum of its proper divisors (120487).

198071273 is a wasteful number, since it uses less digits than its factorization.

198071273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120486.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 198071273 is about 14073.7796273780. The cubic root of 198071273 is about 582.9175947871.

The spelling of 198071273 in words is "one hundred ninety-eight million, seventy-one thousand, two hundred seventy-three".