123302189 has 2 divisors, whose sum is σ = 123302190. Its totient is φ = 123302188.

The previous prime is 123302161. The next prime is 123302203. The reversal of 123302189 is 981203321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77968900 + 45333289 = 8830^2 + 6733^2 .

It is a cyclic number.

It is not a de Polignac number, because 123302189 - 2⁸ = 123301933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123302089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61651094 + 61651095.

It is an arithmetic number, because the mean of its divisors is an integer number (61651095).

Almost surely, 2^123302189 is an apocalyptic number.

It is an amenable number.

123302189 is a deficient number, since it is larger than the sum of its proper divisors (1).

123302189 is an equidigital number, since it uses as much as digits as its factorization.

123302189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 123302189 is about 11104.1518811659. The cubic root of 123302189 is about 497.7259248446.

The spelling of 123302189 in words is "one hundred twenty-three million, three hundred two thousand, one hundred eighty-nine".