197791148 has 24 divisors (see below), whose sum is σ = 350683200. Its totient is φ = 97602048.

The previous prime is 197791103. The next prime is 197791151. The reversal of 197791148 is 841197791.

197791148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274733 + ... + 275451.

It is an arithmetic number, because the mean of its divisors is an integer number (14611800).

Almost surely, 2^197791148 is an apocalyptic number.

It is an amenable number.

197791148 is a deficient number, since it is larger than the sum of its proper divisors (152892052).

197791148 is a wasteful number, since it uses less digits than its factorization.

197791148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1527 counting only the distinct ones).

The product of its digits is 127008, while the sum is 47.

The square root of 197791148 is about 14063.8240887747. The cubic root of 197791148 is about 582.6426654185.

The spelling of 197791148 in words is "one hundred ninety-seven million, seven hundred ninety-one thousand, one hundred forty-eight".