1128201757 has 2 divisors, whose sum is σ = 1128201758. Its totient is φ = 1128201756.

The previous prime is 1128201731. The next prime is 1128201791. The reversal of 1128201757 is 7571028211.

It is an a-pointer prime, because the next prime (1128201791) can be obtained adding 1128201757 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 838044601 + 290157156 = 28949^2 + 17034^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128201757 - 2⁷ = 1128201629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1128201457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564100878 + 564100879.

It is an arithmetic number, because the mean of its divisors is an integer number (564100879).

Almost surely, 2^1128201757 is an apocalyptic number.

It is an amenable number.

1128201757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128201757 is an equidigital number, since it uses as much as digits as its factorization.

1128201757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 34.

The square root of 1128201757 is about 33588.7147268245. The cubic root of 1128201757 is about 1041.0276322446.

Adding to 1128201757 its reverse (7571028211), we get a palindrome (8699229968).

The spelling of 1128201757 in words is "one billion, one hundred twenty-eight million, two hundred one thousand, seven hundred fifty-seven".