1325081313 has 24 divisors (see below), whose sum is σ = 2000486592. Its totient is φ = 843599328.

The previous prime is 1325081291. The next prime is 1325081321. The reversal of 1325081313 is 3131805231.

1325081313 is a `hidden beast` number, since 132 + 508 + 13 + 13 = 666.

It is not a de Polignac number, because 1325081313 - 2¹² = 1325077217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325081363) 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 23 ways as a sum of consecutive naturals, for example, 130270 + ... + 140072.

It is an arithmetic number, because the mean of its divisors is an integer number (83353608).

Almost surely, 2^1325081313 is an apocalyptic number.

It is an amenable number.

1325081313 is a deficient number, since it is larger than the sum of its proper divisors (675405279).

1325081313 is a wasteful number, since it uses less digits than its factorization.

1325081313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10485 (or 10482 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1325081313 is about 36401.6663492209. Note that the first 3 decimals coincide. The cubic root of 1325081313 is about 1098.3670849023.

Adding to 1325081313 its reverse (3131805231), we get a palindrome (4456886544).

The spelling of 1325081313 in words is "one billion, three hundred twenty-five million, eighty-one thousand, three hundred thirteen".