122310289 has 2 divisors, whose sum is σ = 122310290. Its totient is φ = 122310288.

The previous prime is 122310281. The next prime is 122310301. The reversal of 122310289 is 982013221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121176064 + 1134225 = 11008^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 122310289 - 2³ = 122310281 is a prime.

It is not a weakly prime, because it can be changed into another prime (122310281) 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, 61155144 + 61155145.

It is an arithmetic number, because the mean of its divisors is an integer number (61155145).

Almost surely, 2^122310289 is an apocalyptic number.

It is an amenable number.

122310289 is a deficient number, since it is larger than the sum of its proper divisors (1).

122310289 is an equidigital number, since it uses as much as digits as its factorization.

122310289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 122310289 is about 11059.3982205181. The cubic root of 122310289 is about 496.3876838595.

The spelling of 122310289 in words is "one hundred twenty-two million, three hundred ten thousand, two hundred eighty-nine".