197281474097 has 2 divisors, whose sum is σ = 197281474098. Its totient is φ = 197281474096.

The previous prime is 197281474087. The next prime is 197281474099. The reversal of 197281474097 is 790474182791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197065854241 + 215619856 = 443921^2 + 14684^2 .

It is a cyclic number.

It is not a de Polignac number, because 197281474097 - 2¹⁶ = 197281408561 is a prime.

Together with 197281474099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197281474099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98640737048 + 98640737049.

It is an arithmetic number, because the mean of its divisors is an integer number (98640737049).

Almost surely, 2^197281474097 is an apocalyptic number.

It is an amenable number.

197281474097 is a deficient number, since it is larger than the sum of its proper divisors (1).

197281474097 is an equidigital number, since it uses as much as digits as its factorization.

197281474097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The spelling of 197281474097 in words is "one hundred ninety-seven billion, two hundred eighty-one million, four hundred seventy-four thousand, ninety-seven".