1312660632 has 16 divisors (see below), whose sum is σ = 3281651640. Its totient is φ = 437553536.

The previous prime is 1312660631. The next prime is 1312660637. The reversal of 1312660632 is 2360662131.

1312660632 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1312660632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312660631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27347073 + ... + 27347120.

Almost surely, 2^1312660632 is an apocalyptic number.

1312660632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312660632 is an abundant number, since it is smaller than the sum of its proper divisors (1968991008).

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

1312660632 is a wasteful number, since it uses less digits than its factorization.

1312660632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54694202 (or 54694198 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1312660632 is about 36230.6587298658. The cubic root of 1312660632 is about 1094.9244492400.

The spelling of 1312660632 in words is "one billion, three hundred twelve million, six hundred sixty thousand, six hundred thirty-two".