1126718399 has 2 divisors, whose sum is σ = 1126718400. Its totient is φ = 1126718398.

The previous prime is 1126718389. The next prime is 1126718447. The reversal of 1126718399 is 9938176211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1126718399 - 2⁸ = 1126718143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126718389) 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, 563359199 + 563359200.

It is an arithmetic number, because the mean of its divisors is an integer number (563359200).

Almost surely, 2^1126718399 is an apocalyptic number.

1126718399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126718399 is an equidigital number, since it uses as much as digits as its factorization.

1126718399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 1126718399 is about 33566.6262677678. The cubic root of 1126718399 is about 1040.5711849441.

The spelling of 1126718399 in words is "one billion, one hundred twenty-six million, seven hundred eighteen thousand, three hundred ninety-nine".