1312265367 has 48 divisors (see below), whose sum is σ = 2283520512. Its totient is φ = 737514720.

The previous prime is 1312265351. The next prime is 1312265369. The reversal of 1312265367 is 7635622131.

1312265367 is a `hidden beast` number, since 1 + 31 + 2 + 265 + 367 = 666.

It is not a de Polignac number, because 1312265367 - 2⁴ = 1312265351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312265369) 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 47 ways as a sum of consecutive naturals, for example, 97438 + ... + 110084.

It is an arithmetic number, because the mean of its divisors is an integer number (47573344).

Almost surely, 2^1312265367 is an apocalyptic number.

1312265367 is a deficient number, since it is larger than the sum of its proper divisors (971255145).

1312265367 is an equidigital number, since it uses as much as digits as its factorization.

1312265367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730 (or 12718 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 1312265367 is about 36225.2034776894. The cubic root of 1312265367 is about 1094.8145379273.

Adding to 1312265367 its reverse (7635622131), we get a palindrome (8947887498).

The spelling of 1312265367 in words is "one billion, three hundred twelve million, two hundred sixty-five thousand, three hundred sixty-seven".