122356417 has 2 divisors, whose sum is σ = 122356418. Its totient is φ = 122356416.

The previous prime is 122356397. The next prime is 122356433. The reversal of 122356417 is 714653221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82464561 + 39891856 = 9081^2 + 6316^2 .

It is a cyclic number.

It is not a de Polignac number, because 122356417 - 2¹⁹ = 121832129 is a prime.

It is not a weakly prime, because it can be changed into another prime (122356517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61178208 + 61178209.

It is an arithmetic number, because the mean of its divisors is an integer number (61178209).

Almost surely, 2^122356417 is an apocalyptic number.

It is an amenable number.

122356417 is a deficient number, since it is larger than the sum of its proper divisors (1).

122356417 is an equidigital number, since it uses as much as digits as its factorization.

122356417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 122356417 is about 11061.4834900207. The cubic root of 122356417 is about 496.4500784282.

The spelling of 122356417 in words is "one hundred twenty-two million, three hundred fifty-six thousand, four hundred seventeen".