1120205549 has 2 divisors, whose sum is σ = 1120205550. Its totient is φ = 1120205548.

The previous prime is 1120205539. The next prime is 1120205551. The reversal of 1120205549 is 9455020211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804006025 + 316199524 = 28355^2 + 17782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120205549 is a prime.

Together with 1120205551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120205539) 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, 560102774 + 560102775.

It is an arithmetic number, because the mean of its divisors is an integer number (560102775).

Almost surely, 2^1120205549 is an apocalyptic number.

It is an amenable number.

1120205549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120205549 is an equidigital number, since it uses as much as digits as its factorization.

1120205549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1120205549 is about 33469.4718960428. The cubic root of 1120205549 is about 1038.5623469585.

The spelling of 1120205549 in words is "one billion, one hundred twenty million, two hundred five thousand, five hundred forty-nine".