123000197 has 2 divisors, whose sum is σ = 123000198. Its totient is φ = 123000196.

The previous prime is 123000193. The next prime is 123000203. The reversal of 123000197 is 791000321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75238276 + 47761921 = 8674^2 + 6911^2 .

It is a cyclic number.

It is not a de Polignac number, because 123000197 - 2² = 123000193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123000193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61500098 + 61500099.

It is an arithmetic number, because the mean of its divisors is an integer number (61500099).

Almost surely, 2^123000197 is an apocalyptic number.

It is an amenable number.

123000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

123000197 is an equidigital number, since it uses as much as digits as its factorization.

123000197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 123000197 is about 11090.5453878518. The cubic root of 123000197 is about 497.3192488331.

The spelling of 123000197 in words is "one hundred twenty-three million, one hundred ninety-seven", and thus it is an aban number.