198971148 has 48 divisors (see below), whose sum is σ = 478114560. Its totient is φ = 64365504.

The previous prime is 198971147. The next prime is 198971161. The reversal of 198971148 is 841179891.

198971148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 198971097 and 198971106.

It is not an unprimeable number, because it can be changed into a prime (198971141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85018 + ... + 87326.

It is an arithmetic number, because the mean of its divisors is an integer number (9960720).

Almost surely, 2^198971148 is an apocalyptic number.

It is an amenable number.

198971148 is an abundant number, since it is smaller than the sum of its proper divisors (279143412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198971148 is a wasteful number, since it uses less digits than its factorization.

198971148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526 (or 2524 counting only the distinct ones).

The product of its digits is 145152, while the sum is 48.

The square root of 198971148 is about 14105.7133105703. The cubic root of 198971148 is about 583.7990293346.

It can be divided in two parts, 1989 and 71148, that added together give a palindrome (73137).

The spelling of 198971148 in words is "one hundred ninety-eight million, nine hundred seventy-one thousand, one hundred forty-eight".