1120275161 has 2 divisors, whose sum is σ = 1120275162. Its totient is φ = 1120275160.

The previous prime is 1120275139. The next prime is 1120275223. The reversal of 1120275161 is 1615720211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885419536 + 234855625 = 29756^2 + 15325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120275161 - 2¹⁰ = 1120274137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120275161.

It is not a weakly prime, because it can be changed into another prime (1120295161) 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, 560137580 + 560137581.

It is an arithmetic number, because the mean of its divisors is an integer number (560137581).

Almost surely, 2^1120275161 is an apocalyptic number.

It is an amenable number.

1120275161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120275161 is an equidigital number, since it uses as much as digits as its factorization.

1120275161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1120275161 is about 33470.5118126389. The cubic root of 1120275161 is about 1038.5838593511.

Adding to 1120275161 its reverse (1615720211), we get a palindrome (2735995372).

The spelling of 1120275161 in words is "one billion, one hundred twenty million, two hundred seventy-five thousand, one hundred sixty-one".