1129087361 has 2 divisors, whose sum is σ = 1129087362. Its totient is φ = 1129087360.

The previous prime is 1129087343. The next prime is 1129087373. The reversal of 1129087361 is 1637809211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1038837361 + 90250000 = 32231^2 + 9500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129087361 - 2¹⁴ = 1129070977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1129087321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564543680 + 564543681.

It is an arithmetic number, because the mean of its divisors is an integer number (564543681).

Almost surely, 2^1129087361 is an apocalyptic number.

It is an amenable number.

1129087361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129087361 is an equidigital number, since it uses as much as digits as its factorization.

1129087361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1129087361 is about 33601.8951995271. The cubic root of 1129087361 is about 1041.2999526588.

The spelling of 1129087361 in words is "one billion, one hundred twenty-nine million, eighty-seven thousand, three hundred sixty-one".