122677769 has 2 divisors, whose sum is σ = 122677770. Its totient is φ = 122677768.

The previous prime is 122677739. The next prime is 122677777. The reversal of 122677769 is 967776221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74166544 + 48511225 = 8612^2 + 6965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122677769 is a prime.

It is a super-2 number, since 2×122677769² = 30099670013634722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122677739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61338884 + 61338885.

It is an arithmetic number, because the mean of its divisors is an integer number (61338885).

Almost surely, 2^122677769 is an apocalyptic number.

It is an amenable number.

122677769 is a deficient number, since it is larger than the sum of its proper divisors (1).

122677769 is an equidigital number, since it uses as much as digits as its factorization.

122677769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 47.

The square root of 122677769 is about 11075.9996840014. Note that the first 3 decimals coincide. The cubic root of 122677769 is about 496.8843173707.

The spelling of 122677769 in words is "one hundred twenty-two million, six hundred seventy-seven thousand, seven hundred sixty-nine".