122522789 has 2 divisors, whose sum is σ = 122522790. Its totient is φ = 122522788.

The previous prime is 122522747. The next prime is 122522837. The reversal of 122522789 is 987225221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103530625 + 18992164 = 10175^2 + 4358^2 .

It is a cyclic number.

It is not a de Polignac number, because 122522789 - 2¹⁶ = 122457253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122522189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61261394 + 61261395.

It is an arithmetic number, because the mean of its divisors is an integer number (61261395).

Almost surely, 2^122522789 is an apocalyptic number.

It is an amenable number.

122522789 is a deficient number, since it is larger than the sum of its proper divisors (1).

122522789 is an equidigital number, since it uses as much as digits as its factorization.

122522789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 122522789 is about 11069.0012647935. The cubic root of 122522789 is about 496.6749896258.

The spelling of 122522789 in words is "one hundred twenty-two million, five hundred twenty-two thousand, seven hundred eighty-nine".