122445289 has 2 divisors, whose sum is σ = 122445290. Its totient is φ = 122445288.

The previous prime is 122445277. The next prime is 122445313. The reversal of 122445289 is 982544221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116467264 + 5978025 = 10792^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 122445289 - 2⁷ = 122445161 is a prime.

It is not a weakly prime, because it can be changed into another prime (122445269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61222644 + 61222645.

It is an arithmetic number, because the mean of its divisors is an integer number (61222645).

Almost surely, 2^122445289 is an apocalyptic number.

It is an amenable number.

122445289 is a deficient number, since it is larger than the sum of its proper divisors (1).

122445289 is an equidigital number, since it uses as much as digits as its factorization.

122445289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 122445289 is about 11065.4999435181. The cubic root of 122445289 is about 496.5702460354.

The spelling of 122445289 in words is "one hundred twenty-two million, four hundred forty-five thousand, two hundred eighty-nine".