122302289 has 2 divisors, whose sum is σ = 122302290. Its totient is φ = 122302288.

The previous prime is 122302261. The next prime is 122302291. The reversal of 122302289 is 982203221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113060689 + 9241600 = 10633^2 + 3040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122302289 is a prime.

It is a Sophie Germain prime.

Together with 122302291, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122302489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61151144 + 61151145.

It is an arithmetic number, because the mean of its divisors is an integer number (61151145).

Almost surely, 2^122302289 is an apocalyptic number.

It is an amenable number.

122302289 is a deficient number, since it is larger than the sum of its proper divisors (1).

122302289 is an equidigital number, since it uses as much as digits as its factorization.

122302289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 122302289 is about 11059.0365312716. The cubic root of 122302289 is about 496.3768611449.

The spelling of 122302289 in words is "one hundred twenty-two million, three hundred two thousand, two hundred eighty-nine".