1121488517 has 2 divisors, whose sum is σ = 1121488518. Its totient is φ = 1121488516.

The previous prime is 1121488469. The next prime is 1121488567. The reversal of 1121488517 is 7158841211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119973156 + 1515361 = 33466^2 + 1231^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121488517 - 2¹² = 1121484421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121488567) 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, 560744258 + 560744259.

It is an arithmetic number, because the mean of its divisors is an integer number (560744259).

Almost surely, 2^1121488517 is an apocalyptic number.

It is an amenable number.

1121488517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121488517 is an equidigital number, since it uses as much as digits as its factorization.

1121488517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 38.

The square root of 1121488517 is about 33488.6326534841. The cubic root of 1121488517 is about 1038.9586831194.

The spelling of 1121488517 in words is "one billion, one hundred twenty-one million, four hundred eighty-eight thousand, five hundred seventeen".