1312450636 has 12 divisors (see below), whose sum is σ = 2624901328. Its totient is φ = 562478832.

The previous prime is 1312450619. The next prime is 1312450663. The reversal of 1312450636 is 6360542131.

1312450636 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1312450598 and 1312450607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23436591 + ... + 23436646.

Almost surely, 2^1312450636 is an apocalyptic number.

It is an amenable number.

1312450636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312450636 is a wasteful number, since it uses less digits than its factorization.

1312450636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46873248 (or 46873246 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1312450636 is about 36227.7605711421. The cubic root of 1312450636 is about 1094.8660584137.

Adding to 1312450636 its reverse (6360542131), we get a palindrome (7672992767).

The spelling of 1312450636 in words is "one billion, three hundred twelve million, four hundred fifty thousand, six hundred thirty-six".