1100000197 has 2 divisors, whose sum is σ = 1100000198. Its totient is φ = 1100000196.

The previous prime is 1100000179. The next prime is 1100000203. The reversal of 1100000197 is 7910000011.

It is a happy number.

Together with previous prime (1100000179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1099983556 + 16641 = 33166^2 + 129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100000197 - 2¹¹ = 1099998149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100000177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000098 + 550000099.

It is an arithmetic number, because the mean of its divisors is an integer number (550000099).

Almost surely, 2^1100000197 is an apocalyptic number.

It is an amenable number.

1100000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100000197 is an equidigital number, since it uses as much as digits as its factorization.

1100000197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 19.

The square root of 1100000197 is about 33166.2508734406. The cubic root of 1100000197 is about 1032.2801770804.

The spelling of 1100000197 in words is "one billion, one hundred million, one hundred ninety-seven", and thus it is an aban number.