197568011 has 2 divisors, whose sum is σ = 197568012. Its totient is φ = 197568010.

The previous prime is 197567989. The next prime is 197568013. The reversal of 197568011 is 110865791.

197568011 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 is an emirp because it is prime and its reverse (110865791) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197568011 is a prime.

It is a super-2 number, since 2×197568011² = 78066237940992242, which contains 22 as substring.

Together with 197568013, 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 (197568013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98784005 + 98784006.

It is an arithmetic number, because the mean of its divisors is an integer number (98784006).

Almost surely, 2^197568011 is an apocalyptic number.

197568011 is a deficient number, since it is larger than the sum of its proper divisors (1).

197568011 is an equidigital number, since it uses as much as digits as its factorization.

197568011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 197568011 is about 14055.8888370675. Note that the first 4 decimals coincide. The cubic root of 197568011 is about 582.4234812637.

The spelling of 197568011 in words is "one hundred ninety-seven million, five hundred sixty-eight thousand, eleven".