1326133005 has 8 divisors (see below), whose sum is σ = 2121812832. Its totient is φ = 707270928.

The previous prime is 1326133001. The next prime is 1326133007. The reversal of 1326133005 is 5003316231.

It is a happy number.

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

It is not a de Polignac number, because 1326133005 - 2² = 1326133001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326133001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44204419 + ... + 44204448.

It is an arithmetic number, because the mean of its divisors is an integer number (265226604).

Almost surely, 2^1326133005 is an apocalyptic number.

1326133005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1326133005 is a deficient number, since it is larger than the sum of its proper divisors (795679827).

1326133005 is an equidigital number, since it uses as much as digits as its factorization.

1326133005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88408875.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1326133005 is about 36416.1091414226. The cubic root of 1326133005 is about 1098.6575924594.

Adding to 1326133005 its reverse (5003316231), we get a palindrome (6329449236).

The spelling of 1326133005 in words is "one billion, three hundred twenty-six million, one hundred thirty-three thousand, five".