101000197 has 2 divisors, whose sum is σ = 101000198. Its totient is φ = 101000196.

The previous prime is 101000161. The next prime is 101000203. The reversal of 101000197 is 791000101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81162081 + 19838116 = 9009^2 + 4454^2 .

It is a cyclic number.

It is not a de Polignac number, because 101000197 - 2¹⁹ = 100475909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101000117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500098 + 50500099.

It is an arithmetic number, because the mean of its divisors is an integer number (50500099).

Almost surely, 2^101000197 is an apocalyptic number.

It is an amenable number.

101000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000197 is an equidigital number, since it uses as much as digits as its factorization.

101000197 is an evil number, because the sum of its binary digits is even.

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

The square root of 101000197 is about 10049.8854222324. The cubic root of 101000197 is about 465.7012535627.

Adding to 101000197 its reverse (791000101), we get a palindrome (892000298).

The spelling of 101000197 in words is "one hundred one million, one hundred ninety-seven", and thus it is an aban number.