197422271 has 6 divisors (see below), whose sum is σ = 206379600. Its totient is φ = 188838188.

The previous prime is 197422249. The next prime is 197422273. The reversal of 197422271 is 172224791.

It is not a de Polignac number, because 197422271 - 2¹⁸ = 197160127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197422273) 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 5 ways as a sum of consecutive naturals, for example, 186071 + ... + 187128.

It is an arithmetic number, because the mean of its divisors is an integer number (34396600).

Almost surely, 2^197422271 is an apocalyptic number.

197422271 is a deficient number, since it is larger than the sum of its proper divisors (8957329).

197422271 is an equidigital number, since it uses as much as digits as its factorization.

197422271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373245 (or 373222 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 197422271 is about 14050.7035766897. The cubic root of 197422271 is about 582.2802339198.

The spelling of 197422271 in words is "one hundred ninety-seven million, four hundred twenty-two thousand, two hundred seventy-one".