1126767281 has 2 divisors, whose sum is σ = 1126767282. Its totient is φ = 1126767280.

The previous prime is 1126767223. The next prime is 1126767311. The reversal of 1126767281 is 1827676211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1022400625 + 104366656 = 31975^2 + 10216^2 .

It is an emirp because it is prime and its reverse (1827676211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1126767281 - 2¹⁴ = 1126750897 is a prime.

It is a super-2 number, since 2×1126767281² = 2539209011064265922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1126767181) 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, 563383640 + 563383641.

It is an arithmetic number, because the mean of its divisors is an integer number (563383641).

Almost surely, 2^1126767281 is an apocalyptic number.

It is an amenable number.

1126767281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126767281 is an equidigital number, since it uses as much as digits as its factorization.

1126767281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 41.

The square root of 1126767281 is about 33567.3543938154. The cubic root of 1126767281 is about 1040.5862329115.

The spelling of 1126767281 in words is "one billion, one hundred twenty-six million, seven hundred sixty-seven thousand, two hundred eighty-one".