11128769 has 2 divisors, whose sum is σ = 11128770. Its totient is φ = 11128768.

The previous prime is 11128763. The next prime is 11128771. The reversal of 11128769 is 96782111.

11128769 is nontrivially palindromic in base 14.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6697744 + 4431025 = 2588^2 + 2105^2 .

It is a cyclic number.

It is not a de Polignac number, because 11128769 - 2¹⁶ = 11063233 is a prime.

It is a super-2 number, since 2×11128769² = 247698998910722, which contains 22 as substring.

Together with 11128771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11128763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5564384 + 5564385.

It is an arithmetic number, because the mean of its divisors is an integer number (5564385).

Almost surely, 2^11128769 is an apocalyptic number.

It is an amenable number.

11128769 is a deficient number, since it is larger than the sum of its proper divisors (1).

11128769 is an equidigital number, since it uses as much as digits as its factorization.

11128769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 35.

The square root of 11128769 is about 3335.9809651735. The cubic root of 11128769 is about 223.2624618568.

The spelling of 11128769 in words is "eleven million, one hundred twenty-eight thousand, seven hundred sixty-nine".