197206313497 has 2 divisors, whose sum is σ = 197206313498. Its totient is φ = 197206313496.

The previous prime is 197206313461. The next prime is 197206313527. The reversal of 197206313497 is 794313602791.

197206313497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181496448576 + 15709864921 = 426024^2 + 125339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197206313497 is a prime.

It is not a weakly prime, because it can be changed into another prime (197206013497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98603156748 + 98603156749.

It is an arithmetic number, because the mean of its divisors is an integer number (98603156749).

Almost surely, 2^197206313497 is an apocalyptic number.

It is an amenable number.

197206313497 is a deficient number, since it is larger than the sum of its proper divisors (1).

197206313497 is an equidigital number, since it uses as much as digits as its factorization.

197206313497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 197206313497 in words is "one hundred ninety-seven billion, two hundred six million, three hundred thirteen thousand, four hundred ninety-seven".