1280080177 has 2 divisors, whose sum is σ = 1280080178. Its totient is φ = 1280080176.

The previous prime is 1280080163. The next prime is 1280080183. The reversal of 1280080177 is 7710800821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147922161 + 132158016 = 33881^2 + 11496^2 .

It is an emirp because it is prime and its reverse (7710800821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1280080177 - 2⁷ = 1280080049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1280080577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640040088 + 640040089.

It is an arithmetic number, because the mean of its divisors is an integer number (640040089).

Almost surely, 2^1280080177 is an apocalyptic number.

It is an amenable number.

1280080177 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280080177 is an equidigital number, since it uses as much as digits as its factorization.

1280080177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 1280080177 is about 35778.2081300895. The cubic root of 1280080177 is about 1085.7897163585.

Adding to 1280080177 its reverse (7710800821), we get a palindrome (8990880998).

The spelling of 1280080177 in words is "one billion, two hundred eighty million, eighty thousand, one hundred seventy-seven".