1325485765 has 4 divisors (see below), whose sum is σ = 1590582924. Its totient is φ = 1060388608.

The previous prime is 1325485757. The next prime is 1325485787. The reversal of 1325485765 is 5675845231.

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 139854276 + 1185631489 = 11826^2 + 34433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325485765 - 2³ = 1325485757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132548572 + ... + 132548581.

It is an arithmetic number, because the mean of its divisors is an integer number (397645731).

Almost surely, 2^1325485765 is an apocalyptic number.

It is an amenable number.

1325485765 is a deficient number, since it is larger than the sum of its proper divisors (265097159).

1325485765 is an equidigital number, since it uses as much as digits as its factorization.

1325485765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265097158.

The product of its digits is 1008000, while the sum is 46.

The square root of 1325485765 is about 36407.2213303899. The cubic root of 1325485765 is about 1098.4788243530.

The spelling of 1325485765 in words is "one billion, three hundred twenty-five million, four hundred eighty-five thousand, seven hundred sixty-five".