122238769 has 2 divisors, whose sum is σ = 122238770. Its totient is φ = 122238768.

The previous prime is 122238763. The next prime is 122238773. The reversal of 122238769 is 967832221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 1238769 = 11000^2 + 1113^2 .

It is an emirp because it is prime and its reverse (967832221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122238769 - 2⁹ = 122238257 is a prime.

It is a super-2 number, since 2×122238769² = 29884633293270722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122238763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61119384 + 61119385.

It is an arithmetic number, because the mean of its divisors is an integer number (61119385).

Almost surely, 2^122238769 is an apocalyptic number.

It is an amenable number.

122238769 is a deficient number, since it is larger than the sum of its proper divisors (1).

122238769 is an equidigital number, since it uses as much as digits as its factorization.

122238769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 122238769 is about 11056.1642987069. The cubic root of 122238769 is about 496.2909120358.

The spelling of 122238769 in words is "one hundred twenty-two million, two hundred thirty-eight thousand, seven hundred sixty-nine".