122530559 has 2 divisors, whose sum is σ = 122530560. Its totient is φ = 122530558.

The previous prime is 122530459. The next prime is 122530561. The reversal of 122530559 is 955035221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122530559 - 2¹⁶ = 122465023 is a prime.

It is a Sophie Germain prime.

Together with 122530561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122530159) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61265279 + 61265280.

It is an arithmetic number, because the mean of its divisors is an integer number (61265280).

Almost surely, 2^122530559 is an apocalyptic number.

122530559 is a deficient number, since it is larger than the sum of its proper divisors (1).

122530559 is an equidigital number, since it uses as much as digits as its factorization.

122530559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 122530559 is about 11069.3522394041. The cubic root of 122530559 is about 496.6854885790.

The spelling of 122530559 in words is "one hundred twenty-two million, five hundred thirty thousand, five hundred fifty-nine".