1327213553 has 4 divisors (see below), whose sum is σ = 1329546660. Its totient is φ = 1324880448.

The previous prime is 1327213549. The next prime is 1327213567. The reversal of 1327213553 is 3553127231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 231404944 + 1095808609 = 15212^2 + 33103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1327213553 - 2² = 1327213549 is a prime.

It is a super-2 number, since 2×1327213553² = 3522991630533767618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1327213523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165700 + ... + 1166837.

It is an arithmetic number, because the mean of its divisors is an integer number (332386665).

Almost surely, 2^1327213553 is an apocalyptic number.

It is an amenable number.

1327213553 is a deficient number, since it is larger than the sum of its proper divisors (2333107).

1327213553 is an equidigital number, since it uses as much as digits as its factorization.

1327213553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333106.

The product of its digits is 18900, while the sum is 32.

The square root of 1327213553 is about 36430.9422469417. The cubic root of 1327213553 is about 1098.9559109465.

The spelling of 1327213553 in words is "one billion, three hundred twenty-seven million, two hundred thirteen thousand, five hundred fifty-three".