1126289473 has 2 divisors, whose sum is σ = 1126289474. Its totient is φ = 1126289472.

The previous prime is 1126289453. The next prime is 1126289513. The reversal of 1126289473 is 3749826211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 739459249 + 386830224 = 27193^2 + 19668^2 .

It is an emirp because it is prime and its reverse (3749826211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1126289473 - 2⁵ = 1126289441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1126289453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563144736 + 563144737.

It is an arithmetic number, because the mean of its divisors is an integer number (563144737).

Almost surely, 2^1126289473 is an apocalyptic number.

It is an amenable number.

1126289473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126289473 is an equidigital number, since it uses as much as digits as its factorization.

1126289473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 1126289473 is about 33560.2364860559. The cubic root of 1126289473 is about 1040.4391245330.

The spelling of 1126289473 in words is "one billion, one hundred twenty-six million, two hundred eighty-nine thousand, four hundred seventy-three".