1312314625 has 8 divisors (see below), whose sum is σ = 1637768808. Its totient is φ = 1049851600.

The previous prime is 1312314613. The next prime is 1312314709. The reversal of 1312314625 is 5264132131.

It can be written as a sum of positive squares in 4 ways, for example, as 30603024 + 1281711601 = 5532^2 + 35801^2 .

It is not a de Polignac number, because 1312314625 - 2²¹ = 1310217473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312314593 and 1312314602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5249134 + ... + 5249383.

It is an arithmetic number, because the mean of its divisors is an integer number (204721101).

Almost surely, 2^1312314625 is an apocalyptic number.

It is an amenable number.

1312314625 is a deficient number, since it is larger than the sum of its proper divisors (325454183).

1312314625 is an equidigital number, since it uses as much as digits as its factorization.

1312314625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498532 (or 10498522 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 1312314625 is about 36225.8833570694. The cubic root of 1312314625 is about 1094.8282362999.

Adding to 1312314625 its reverse (5264132131), we get a palindrome (6576446756).

The spelling of 1312314625 in words is "one billion, three hundred twelve million, three hundred fourteen thousand, six hundred twenty-five".