197040097 has 2 divisors, whose sum is σ = 197040098. Its totient is φ = 197040096.

The previous prime is 197040083. The next prime is 197040131. The reversal of 197040097 is 790040791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110754576 + 86285521 = 10524^2 + 9289^2 .

It is an emirp because it is prime and its reverse (790040791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197040097 - 2¹⁵ = 197007329 is a prime.

It is not a weakly prime, because it can be changed into another prime (197040997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98520048 + 98520049.

It is an arithmetic number, because the mean of its divisors is an integer number (98520049).

Almost surely, 2^197040097 is an apocalyptic number.

It is an amenable number.

197040097 is a deficient number, since it is larger than the sum of its proper divisors (1).

197040097 is an equidigital number, since it uses as much as digits as its factorization.

197040097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 197040097 is about 14037.0971714240. The cubic root of 197040097 is about 581.9042612837.

The spelling of 197040097 in words is "one hundred ninety-seven million, forty thousand, ninety-seven".