197193184225 has 12 divisors (see below), whose sum is σ = 247040371564. Its totient is φ = 156128209920.

The previous prime is 197193184213. The next prime is 197193184249. The reversal of 197193184225 is 522481391791.

It can be written as a sum of positive squares in 6 ways, for example, as 7584319744 + 189608864481 = 87088^2 + 435441^2 .

It is not a de Polignac number, because 197193184225 - 2⁵ = 197193184193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40655964 + ... + 40660813.

Almost surely, 2^197193184225 is an apocalyptic number.

It is an amenable number.

197193184225 is a deficient number, since it is larger than the sum of its proper divisors (49847187339).

197193184225 is an equidigital number, since it uses as much as digits as its factorization.

197193184225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81316884 (or 81316879 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The spelling of 197193184225 in words is "one hundred ninety-seven billion, one hundred ninety-three million, one hundred eighty-four thousand, two hundred twenty-five".