1129105277 has 2 divisors, whose sum is σ = 1129105278. Its totient is φ = 1129105276.

The previous prime is 1129105249. The next prime is 1129105291. The reversal of 1129105277 is 7725019211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679071481 + 450033796 = 26059^2 + 21214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129105277 - 2²⁰ = 1128056701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129105207) 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, 564552638 + 564552639.

It is an arithmetic number, because the mean of its divisors is an integer number (564552639).

Almost surely, 2^1129105277 is an apocalyptic number.

It is an amenable number.

1129105277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129105277 is an equidigital number, since it uses as much as digits as its factorization.

1129105277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 1129105277 is about 33602.1617905753. The cubic root of 1129105277 is about 1041.3054603021.

The spelling of 1129105277 in words is "one billion, one hundred twenty-nine million, one hundred five thousand, two hundred seventy-seven".