197250205 has 4 divisors (see below), whose sum is σ = 236700252. Its totient is φ = 157800160.

The previous prime is 197250203. The next prime is 197250217. The reversal of 197250205 is 502052791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92679129 + 104571076 = 9627^2 + 10226^2 .

It is not a de Polignac number, because 197250205 - 2¹ = 197250203 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197250203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19725016 + ... + 19725025.

It is an arithmetic number, because the mean of its divisors is an integer number (59175063).

Almost surely, 2^197250205 is an apocalyptic number.

It is an amenable number.

197250205 is a deficient number, since it is larger than the sum of its proper divisors (39450047).

197250205 is an equidigital number, since it uses as much as digits as its factorization.

197250205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39450046.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 197250205 is about 14044.5792033795. The cubic root of 197250205 is about 582.1110200619. Note that the first 3 decimals are identical.

The spelling of 197250205 in words is "one hundred ninety-seven million, two hundred fifty thousand, two hundred five".