122554937509 has 2 divisors, whose sum is σ = 122554937510. Its totient is φ = 122554937508.

The previous prime is 122554937341. The next prime is 122554937521. The reversal of 122554937509 is 905739455221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97205521284 + 25349416225 = 311778^2 + 159215^2 .

It is an emirp because it is prime and its reverse (905739455221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122554937509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122554937209) 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, 61277468754 + 61277468755.

It is an arithmetic number, because the mean of its divisors is an integer number (61277468755).

Almost surely, 2^122554937509 is an apocalyptic number.

It is an amenable number.

122554937509 is a deficient number, since it is larger than the sum of its proper divisors (1).

122554937509 is an equidigital number, since it uses as much as digits as its factorization.

122554937509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 122554937509 in words is "one hundred twenty-two billion, five hundred fifty-four million, nine hundred thirty-seven thousand, five hundred nine".