197442925 has 12 divisors (see below), whose sum is σ = 255474720. Its totient is φ = 151086320.

The previous prime is 197442923. The next prime is 197442941. The reversal of 197442925 is 529244791.

It is not a de Polignac number, because 197442925 - 2¹ = 197442923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197442923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171115 + ... + 172264.

It is an arithmetic number, because the mean of its divisors is an integer number (21289560).

Almost surely, 2^197442925 is an apocalyptic number.

It is an amenable number.

197442925 is a deficient number, since it is larger than the sum of its proper divisors (58031795).

197442925 is a wasteful number, since it uses less digits than its factorization.

197442925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343412 (or 343407 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 197442925 is about 14051.4385384558. The cubic root of 197442925 is about 582.3005389518.

The spelling of 197442925 in words is "one hundred ninety-seven million, four hundred forty-two thousand, nine hundred twenty-five".