198229153 has 4 divisors (see below), whose sum is σ = 199559700. Its totient is φ = 196898608.

The previous prime is 198229121. The next prime is 198229189. The reversal of 198229153 is 351922891.

198229153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351922891 = 211 ⋅1667881.

It can be written as a sum of positive squares in 2 ways, for example, as 81848209 + 116380944 = 9047^2 + 10788^2 .

It is a cyclic number.

It is not a de Polignac number, because 198229153 - 2⁵ = 198229121 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198229193) 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, 665050 + ... + 665347.

It is an arithmetic number, because the mean of its divisors is an integer number (49889925).

Almost surely, 2^198229153 is an apocalyptic number.

It is an amenable number.

198229153 is a deficient number, since it is larger than the sum of its proper divisors (1330547).

198229153 is a wasteful number, since it uses less digits than its factorization.

198229153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330546.

The product of its digits is 38880, while the sum is 40.

The square root of 198229153 is about 14079.3875221900. The cubic root of 198229153 is about 583.0724322976.

The spelling of 198229153 in words is "one hundred ninety-eight million, two hundred twenty-nine thousand, one hundred fifty-three".