1327206081 has 4 divisors (see below), whose sum is σ = 1769608112. Its totient is φ = 884804052.

The previous prime is 1327206079. The next prime is 1327206091. The reversal of 1327206081 is 1806027231.

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.

It is not a de Polignac number, because 1327206081 - 2¹ = 1327206079 is a prime.

It is a super-2 number, since 2×1327206081² = 3522951962886757122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1327206091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221201011 + ... + 221201016.

It is an arithmetic number, because the mean of its divisors is an integer number (442402028).

Almost surely, 2^1327206081 is an apocalyptic number.

It is an amenable number.

1327206081 is a deficient number, since it is larger than the sum of its proper divisors (442402031).

1327206081 is an equidigital number, since it uses as much as digits as its factorization.

1327206081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442402030.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1327206081 is about 36430.8396966087. The cubic root of 1327206081 is about 1098.9538486273.

The spelling of 1327206081 in words is "one billion, three hundred twenty-seven million, two hundred six thousand, eighty-one".