1327143605 has 8 divisors (see below), whose sum is σ = 1593338712. Its totient is φ = 1061203968.

The previous prime is 1327143569. The next prime is 1327143619. The reversal of 1327143605 is 5063417231.

It can be written as a sum of positive squares in 4 ways, for example, as 129914404 + 1197229201 = 11398^2 + 34601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1327143605 - 2⁶ = 1327143541 is a prime.

It is a super-2 number, since 2×1327143605² = 3522620296584792050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 52244 + ... + 73373.

It is an arithmetic number, because the mean of its divisors is an integer number (199167339).

Almost surely, 2^1327143605 is an apocalyptic number.

It is an amenable number.

1327143605 is a deficient number, since it is larger than the sum of its proper divisors (266195107).

1327143605 is a wasteful number, since it uses less digits than its factorization.

1327143605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127735.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1327143605 is about 36429.9822261829. The cubic root of 1327143605 is about 1098.9366045537.

The spelling of 1327143605 in words is "one billion, three hundred twenty-seven million, one hundred forty-three thousand, six hundred five".