122530999 has 2 divisors, whose sum is σ = 122531000. Its totient is φ = 122530998.

The previous prime is 122530987. The next prime is 122531009. The reversal of 122530999 is 999035221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122530999 - 2⁷ = 122530871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122530949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61265499 + 61265500.

It is an arithmetic number, because the mean of its divisors is an integer number (61265500).

Almost surely, 2^122530999 is an apocalyptic number.

122530999 is a deficient number, since it is larger than the sum of its proper divisors (1).

122530999 is an equidigital number, since it uses as much as digits as its factorization.

122530999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 122530999 is about 11069.3721140813. The cubic root of 122530999 is about 496.6860831010.

The spelling of 122530999 in words is "one hundred twenty-two million, five hundred thirty thousand, nine hundred ninety-nine".