122304491 has 2 divisors, whose sum is σ = 122304492. Its totient is φ = 122304490.

The previous prime is 122304473. The next prime is 122304503. The reversal of 122304491 is 194403221.

It is a strong prime.

It is an emirp because it is prime and its reverse (194403221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122304491 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122304491.

It is not a weakly prime, because it can be changed into another prime (122304191) 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, 61152245 + 61152246.

It is an arithmetic number, because the mean of its divisors is an integer number (61152246).

Almost surely, 2^122304491 is an apocalyptic number.

122304491 is a deficient number, since it is larger than the sum of its proper divisors (1).

122304491 is an equidigital number, since it uses as much as digits as its factorization.

122304491 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 26.

The square root of 122304491 is about 11059.1360874166. The cubic root of 122304491 is about 496.3798401442.

The spelling of 122304491 in words is "one hundred twenty-two million, three hundred four thousand, four hundred ninety-one".