197271227 has 2 divisors, whose sum is σ = 197271228. Its totient is φ = 197271226.

The previous prime is 197271209. The next prime is 197271251. The reversal of 197271227 is 722172791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197271227 - 2¹⁴ = 197254843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197271257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98635613 + 98635614.

It is an arithmetic number, because the mean of its divisors is an integer number (98635614).

Almost surely, 2^197271227 is an apocalyptic number.

197271227 is a deficient number, since it is larger than the sum of its proper divisors (1).

197271227 is an equidigital number, since it uses as much as digits as its factorization.

197271227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 38.

The square root of 197271227 is about 14045.3275860693. The cubic root of 197271227 is about 582.1316988798.

The spelling of 197271227 in words is "one hundred ninety-seven million, two hundred seventy-one thousand, two hundred twenty-seven".