1080721141 has 2 divisors, whose sum is σ = 1080721142. Its totient is φ = 1080721140.

The previous prime is 1080721129. The next prime is 1080721151. The reversal of 1080721141 is 1411270801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 836424241 + 244296900 = 28921^2 + 15630^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080721141 - 2¹¹ = 1080719093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1080721151) 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, 540360570 + 540360571.

It is an arithmetic number, because the mean of its divisors is an integer number (540360571).

Almost surely, 2^1080721141 is an apocalyptic number.

It is an amenable number.

1080721141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080721141 is an equidigital number, since it uses as much as digits as its factorization.

1080721141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 1080721141 is about 32874.3234303004. The cubic root of 1080721141 is about 1026.2138753027.

Adding to 1080721141 its reverse (1411270801), we get a palindrome (2491991942).

The spelling of 1080721141 in words is "one billion, eighty million, seven hundred twenty-one thousand, one hundred forty-one".