122194913 has 2 divisors, whose sum is σ = 122194914. Its totient is φ = 122194912.

The previous prime is 122194907. The next prime is 122194931. The reversal of 122194913 is 319491221.

Together with next prime (122194931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119399329 + 2795584 = 10927^2 + 1672^2 .

It is a cyclic number.

It is not a de Polignac number, because 122194913 - 2¹⁰ = 122193889 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 122194913.

It is not a weakly prime, because it can be changed into another prime (122194973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61097456 + 61097457.

It is an arithmetic number, because the mean of its divisors is an integer number (61097457).

Almost surely, 2^122194913 is an apocalyptic number.

It is an amenable number.

122194913 is a deficient number, since it is larger than the sum of its proper divisors (1).

122194913 is an equidigital number, since it uses as much as digits as its factorization.

122194913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 122194913 is about 11054.1807928041. The cubic root of 122194913 is about 496.2315529692.

The spelling of 122194913 in words is "one hundred twenty-two million, one hundred ninety-four thousand, nine hundred thirteen".