197205849 has 27 divisors (see below), whose sum is σ = 296300277. Its totient is φ = 126387000.

The previous prime is 197205847. The next prime is 197205871. The reversal of 197205849 is 948502791.

The square root of 197205849 is 14043.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 197205849 - 2¹ = 197205847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197205847) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1305924 + ... + 1306074.

Almost surely, 2^197205849 is an apocalyptic number.

197205849 is the 14043-rd square number.

197205849 is the 7022-nd centered octagonal number.

It is an amenable number.

197205849 is a deficient number, since it is larger than the sum of its proper divisors (99094428).

197205849 is an equidigital number, since it uses as much as digits as its factorization.

197205849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The cubic root of 197205849 is about 582.0673833484.

The spelling of 197205849 in words is "one hundred ninety-seven million, two hundred five thousand, eight hundred forty-nine".