197644413103 has 2 divisors, whose sum is σ = 197644413104. Its totient is φ = 197644413102.

The previous prime is 197644413007. The next prime is 197644413179. The reversal of 197644413103 is 301314446791.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197644413103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197644413103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197644413403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98822206551 + 98822206552.

It is an arithmetic number, because the mean of its divisors is an integer number (98822206552).

Almost surely, 2^197644413103 is an apocalyptic number.

197644413103 is a deficient number, since it is larger than the sum of its proper divisors (1).

197644413103 is an equidigital number, since it uses as much as digits as its factorization.

197644413103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

Adding to 197644413103 its reverse (301314446791), we get a palindrome (498958859894).

The spelling of 197644413103 in words is "one hundred ninety-seven billion, six hundred forty-four million, four hundred thirteen thousand, one hundred three".