1313565236225 has 24 divisors (see below), whose sum is σ = 1786822377120. Its totient is φ = 949983152000.

The previous prime is 1313565236153. The next prime is 1313565236261. The reversal of 1313565236225 is 5226325653131.

It is a happy number.

It is not a de Polignac number, because 1313565236225 - 2¹⁸ = 1313564974081 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13293236 + ... + 13391685.

It is an arithmetic number, because the mean of its divisors is an integer number (74450932380).

Almost surely, 2^{1313565236225} is an apocalyptic number.

It is an amenable number.

1313565236225 is a deficient number, since it is larger than the sum of its proper divisors (473257140895).

1313565236225 is a wasteful number, since it uses less digits than its factorization.

1313565236225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26685121 (or 26685116 counting only the distinct ones).

The product of its digits is 972000, while the sum is 44.

The spelling of 1313565236225 in words is "one trillion, three hundred thirteen billion, five hundred sixty-five million, two hundred thirty-six thousand, two hundred twenty-five".