1129957757 has 2 divisors, whose sum is σ = 1129957758. Its totient is φ = 1129957756.

The previous prime is 1129957709. The next prime is 1129957783. The reversal of 1129957757 is 7577599211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034973241 + 94984516 = 32171^2 + 9746^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129957757 - 2⁶ = 1129957693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1129957699 and 1129957708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129957957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564978878 + 564978879.

It is an arithmetic number, because the mean of its divisors is an integer number (564978879).

Almost surely, 2^1129957757 is an apocalyptic number.

It is an amenable number.

1129957757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129957757 is an equidigital number, since it uses as much as digits as its factorization.

1129957757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1389150, while the sum is 53.

The square root of 1129957757 is about 33614.8442953407. The cubic root of 1129957757 is about 1041.5674579465.

The spelling of 1129957757 in words is "one billion, one hundred twenty-nine million, nine hundred fifty-seven thousand, seven hundred fifty-seven".