1327768105 has 4 divisors (see below), whose sum is σ = 1593321732. Its totient is φ = 1062214480.

The previous prime is 1327768093. The next prime is 1327768133. The reversal of 1327768105 is 5018677231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5018677231 = 7507 ⋅668533.

It can be written as a sum of positive squares in 2 ways, for example, as 502297744 + 825470361 = 22412^2 + 28731^2 .

It is not a de Polignac number, because 1327768105 - 2⁵ = 1327768073 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132776806 + ... + 132776815.

It is an arithmetic number, because the mean of its divisors is an integer number (398330433).

Almost surely, 2^1327768105 is an apocalyptic number.

It is an amenable number.

1327768105 is a deficient number, since it is larger than the sum of its proper divisors (265553627).

1327768105 is an equidigital number, since it uses as much as digits as its factorization.

1327768105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265553626.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 1327768105 is about 36438.5524547834. The cubic root of 1327768105 is about 1099.1089492015.

The spelling of 1327768105 in words is "one billion, three hundred twenty-seven million, seven hundred sixty-eight thousand, one hundred five".