1327364681 has 4 divisors (see below), whose sum is σ = 1397226000. Its totient is φ = 1257503364.

The previous prime is 1327364611. The next prime is 1327364683. The reversal of 1327364681 is 1864637231.

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: 1864637231 = 17 ⋅109684543.

It is a cyclic number.

It is not a de Polignac number, because 1327364681 - 2²² = 1323170377 is a prime.

It is a super-2 number, since 2×1327364681² = 3523793992732463522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1327364683) 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, 34930631 + ... + 34930668.

It is an arithmetic number, because the mean of its divisors is an integer number (349306500).

Almost surely, 2^1327364681 is an apocalyptic number.

It is an amenable number.

1327364681 is a deficient number, since it is larger than the sum of its proper divisors (69861319).

1327364681 is an equidigital number, since it uses as much as digits as its factorization.

1327364681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69861318.

The product of its digits is 145152, while the sum is 41.

The square root of 1327364681 is about 36433.0163587919. The cubic root of 1327364681 is about 1098.9976215677.

The spelling of 1327364681 in words is "one billion, three hundred twenty-seven million, three hundred sixty-four thousand, six hundred eighty-one".