1313265225 has 12 divisors (see below), whose sum is σ = 2171265296. Its totient is φ = 700408080.

The previous prime is 1313265223. The next prime is 1313265227. The reversal of 1313265225 is 5225623131.

It is an interprime number because it is at equal distance from previous prime (1313265223) and next prime (1313265227).

It is not a de Polignac number, because 1313265225 - 2¹ = 1313265223 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1313265192 and 1313265201.

It is not an unprimeable number, because it can be changed into a prime (1313265223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8755027 + ... + 8755176.

Almost surely, 2^1313265225 is an apocalyptic number.

1313265225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313265225 is a deficient number, since it is larger than the sum of its proper divisors (858000071).

1313265225 is a wasteful number, since it uses less digits than its factorization.

1313265225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17510216 (or 17510211 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 1313265225 is about 36239.0014349182. The cubic root of 1313265225 is about 1095.0925256983.

Adding to 1313265225 its reverse (5225623131), we get a palindrome (6538888356).

The spelling of 1313265225 in words is "one billion, three hundred thirteen million, two hundred sixty-five thousand, two hundred twenty-five".