1279081417 has 2 divisors, whose sum is σ = 1279081418. Its totient is φ = 1279081416.

The previous prime is 1279081373. The next prime is 1279081439. The reversal of 1279081417 is 7141809721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1063020816 + 216060601 = 32604^2 + 14699^2 .

It is a cyclic number.

It is not a de Polignac number, because 1279081417 - 2⁷ = 1279081289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1279081417.

It is not a weakly prime, because it can be changed into another prime (1279081487) 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, 639540708 + 639540709.

It is an arithmetic number, because the mean of its divisors is an integer number (639540709).

Almost surely, 2^1279081417 is an apocalyptic number.

It is an amenable number.

1279081417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279081417 is an equidigital number, since it uses as much as digits as its factorization.

1279081417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1279081417 is about 35764.2477482751. The cubic root of 1279081417 is about 1085.5072534529.

The spelling of 1279081417 in words is "one billion, two hundred seventy-nine million, eighty-one thousand, four hundred seventeen".