1312225708 has 24 divisors (see below), whose sum is σ = 2329140800. Its totient is φ = 646783488.

The previous prime is 1312225697. The next prime is 1312225807. The reversal of 1312225708 is 8075222131.

It is a super-2 number, since 2×1312225708² = 3443872617472202528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312225708.

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, 221116 + ... + 226972.

Almost surely, 2^1312225708 is an apocalyptic number.

It is an amenable number.

1312225708 is a deficient number, since it is larger than the sum of its proper divisors (1016915092).

1312225708 is a wasteful number, since it uses less digits than its factorization.

1312225708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649 (or 6647 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1312225708 is about 36224.6560784226. The cubic root of 1312225708 is about 1094.8035087335.

Adding to 1312225708 its reverse (8075222131), we get a palindrome (9387447839).

The spelling of 1312225708 in words is "one billion, three hundred twelve million, two hundred twenty-five thousand, seven hundred eight".