122395289 has 2 divisors, whose sum is σ = 122395290. Its totient is φ = 122395288.

The previous prime is 122395261. The next prime is 122395303. The reversal of 122395289 is 982593221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93450889 + 28944400 = 9667^2 + 5380^2 .

It is an emirp because it is prime and its reverse (982593221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122395289 - 2⁸ = 122395033 is a prime.

It is not a weakly prime, because it can be changed into another prime (122395249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61197644 + 61197645.

It is an arithmetic number, because the mean of its divisors is an integer number (61197645).

Almost surely, 2^122395289 is an apocalyptic number.

It is an amenable number.

122395289 is a deficient number, since it is larger than the sum of its proper divisors (1).

122395289 is an equidigital number, since it uses as much as digits as its factorization.

122395289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 122395289 is about 11063.2404384972. The cubic root of 122395289 is about 496.5026460681.

The spelling of 122395289 in words is "one hundred twenty-two million, three hundred ninety-five thousand, two hundred eighty-nine".