122356243 has 2 divisors, whose sum is σ = 122356244. Its totient is φ = 122356242.

The previous prime is 122356189. The next prime is 122356261. The reversal of 122356243 is 342653221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122356243 - 2⁹ = 122355731 is a prime.

It is not a weakly prime, because it can be changed into another prime (122356943) 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, 61178121 + 61178122.

It is an arithmetic number, because the mean of its divisors is an integer number (61178122).

Almost surely, 2^122356243 is an apocalyptic number.

122356243 is a deficient number, since it is larger than the sum of its proper divisors (1).

122356243 is an equidigital number, since it uses as much as digits as its factorization.

122356243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 122356243 is about 11061.4756248884. The cubic root of 122356243 is about 496.4498430984.

The spelling of 122356243 in words is "one hundred twenty-two million, three hundred fifty-six thousand, two hundred forty-three".