197243449 has 12 divisors (see below), whose sum is σ = 213998736. Its totient is φ = 181716912.

The previous prime is 197243447. The next prime is 197243461. The reversal of 197243449 is 944342791.

197243449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197243449 - 2¹ = 197243447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197243447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132262 + ... + 133744.

It is an arithmetic number, because the mean of its divisors is an integer number (17833228).

Almost surely, 2^197243449 is an apocalyptic number.

It is an amenable number.

197243449 is a deficient number, since it is larger than the sum of its proper divisors (16755287).

197243449 is a wasteful number, since it uses less digits than its factorization.

197243449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296 (or 2283 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 197243449 is about 14044.3386814759. The cubic root of 197243449 is about 582.1043740411.

The spelling of 197243449 in words is "one hundred ninety-seven million, two hundred forty-three thousand, four hundred forty-nine".