1323645325 has 6 divisors (see below), whose sum is σ = 1641320234. Its totient is φ = 1058916240.

The previous prime is 1323645311. The next prime is 1323645329. The reversal of 1323645325 is 5235463231.

It can be written as a sum of positive squares in 3 ways, for example, as 438106761 + 885538564 = 20931^2 + 29758^2 .

It is not a de Polignac number, because 1323645325 - 2⁹ = 1323644813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323645329) 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 5 ways as a sum of consecutive naturals, for example, 26472882 + ... + 26472931.

Almost surely, 2^1323645325 is an apocalyptic number.

It is an amenable number.

1323645325 is a deficient number, since it is larger than the sum of its proper divisors (317674909).

1323645325 is an equidigital number, since it uses as much as digits as its factorization.

1323645325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52945823 (or 52945818 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

The square root of 1323645325 is about 36381.9367956133. The cubic root of 1323645325 is about 1097.9701754114.

The spelling of 1323645325 in words is "one billion, three hundred twenty-three million, six hundred forty-five thousand, three hundred twenty-five".