198254297 has 4 divisors (see below), whose sum is σ = 200179200. Its totient is φ = 196329396.

The previous prime is 198254293. The next prime is 198254317. The reversal of 198254297 is 792452891.

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 198254297 - 2² = 198254293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198254293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962297 + ... + 962502.

It is an arithmetic number, because the mean of its divisors is an integer number (50044800).

Almost surely, 2^198254297 is an apocalyptic number.

It is an amenable number.

198254297 is a deficient number, since it is larger than the sum of its proper divisors (1924903).

198254297 is a wasteful number, since it uses less digits than its factorization.

198254297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924902.

The product of its digits is 362880, while the sum is 47.

The square root of 198254297 is about 14080.2804304460. The cubic root of 198254297 is about 583.0970841600.

The spelling of 198254297 in words is "one hundred ninety-eight million, two hundred fifty-four thousand, two hundred ninety-seven".