123666097 has 2 divisors, whose sum is σ = 123666098. Its totient is φ = 123666096.

The previous prime is 123666061. The next prime is 123666107. The reversal of 123666097 is 790666321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92852496 + 30813601 = 9636^2 + 5551^2 .

It is a cyclic number.

It is not a de Polignac number, because 123666097 - 2¹⁵ = 123633329 is a prime.

It is not a weakly prime, because it can be changed into another prime (123666797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61833048 + 61833049.

It is an arithmetic number, because the mean of its divisors is an integer number (61833049).

Almost surely, 2^123666097 is an apocalyptic number.

It is an amenable number.

123666097 is a deficient number, since it is larger than the sum of its proper divisors (1).

123666097 is an equidigital number, since it uses as much as digits as its factorization.

123666097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 123666097 is about 11120.5259318074. The cubic root of 123666097 is about 498.2150985019.

The spelling of 123666097 in words is "one hundred twenty-three million, six hundred sixty-six thousand, ninety-seven".