1326132473 has 4 divisors (see below), whose sum is σ = 1342919040. Its totient is φ = 1309345908.

The previous prime is 1326132469. The next prime is 1326132487. The reversal of 1326132473 is 3742316231.

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 a cyclic number.

It is not a de Polignac number, because 1326132473 - 2² = 1326132469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1326132403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8393165 + ... + 8393322.

It is an arithmetic number, because the mean of its divisors is an integer number (335729760).

Almost surely, 2^1326132473 is an apocalyptic number.

It is an amenable number.

1326132473 is a deficient number, since it is larger than the sum of its proper divisors (16786567).

1326132473 is an equidigital number, since it uses as much as digits as its factorization.

1326132473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16786566.

The product of its digits is 18144, while the sum is 32.

The square root of 1326132473 is about 36416.1018369622. The cubic root of 1326132473 is about 1098.6574455446.

The spelling of 1326132473 in words is "one billion, three hundred twenty-six million, one hundred thirty-two thousand, four hundred seventy-three".