1327763081 has 4 divisors (see below), whose sum is σ = 1350267600. Its totient is φ = 1305258564.

The previous prime is 1327763051. The next prime is 1327763089. The reversal of 1327763081 is 1803677231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1803677231 = 773 ⋅2333347.

It is a cyclic number.

It is not a de Polignac number, because 1327763081 - 2²⁶ = 1260654217 is a prime.

It is a super-2 number, since 2×1327763081² = 3525909598533225122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1327763089) 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 in 3 ways as a sum of consecutive naturals, for example, 11252171 + ... + 11252288.

It is an arithmetic number, because the mean of its divisors is an integer number (337566900).

Almost surely, 2^1327763081 is an apocalyptic number.

It is an amenable number.

1327763081 is a deficient number, since it is larger than the sum of its proper divisors (22504519).

1327763081 is an equidigital number, since it uses as much as digits as its factorization.

1327763081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22504518.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1327763081 is about 36438.4835167437. The cubic root of 1327763081 is about 1099.1075629327.

The spelling of 1327763081 in words is "one billion, three hundred twenty-seven million, seven hundred sixty-three thousand, eighty-one".