123005089 has 2 divisors, whose sum is σ = 123005090. Its totient is φ = 123005088.

The previous prime is 123005009. The next prime is 123005093. The reversal of 123005089 is 980500321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70006689 + 52998400 = 8367^2 + 7280^2 .

It is a cyclic number.

It is not a de Polignac number, because 123005089 - 2⁹ = 123004577 is a prime.

It is not a weakly prime, because it can be changed into another prime (123005009) 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, 61502544 + 61502545.

It is an arithmetic number, because the mean of its divisors is an integer number (61502545).

Almost surely, 2^123005089 is an apocalyptic number.

It is an amenable number.

123005089 is a deficient number, since it is larger than the sum of its proper divisors (1).

123005089 is an equidigital number, since it uses as much as digits as its factorization.

123005089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 123005089 is about 11090.7659338749. The cubic root of 123005089 is about 497.3258419214.

The spelling of 123005089 in words is "one hundred twenty-three million, five thousand, eighty-nine".