1312387132 has 24 divisors (see below), whose sum is σ = 2650767840. Its totient is φ = 556881600.

The previous prime is 1312387127. The next prime is 1312387159. The reversal of 1312387132 is 2317832131.

It is a junction number, because it is equal to n+sod(n) for n = 1312387094 and 1312387103.

It is a congruent number.

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, 229207 + ... + 234862.

It is an arithmetic number, because the mean of its divisors is an integer number (110448660).

Almost surely, 2^1312387132 is an apocalyptic number.

It is an amenable number.

1312387132 is an abundant number, since it is smaller than the sum of its proper divisors (1338380708).

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

1312387132 is a wasteful number, since it uses less digits than its factorization.

1312387132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464181 (or 464179 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 1312387132 is about 36226.8841055921. The cubic root of 1312387132 is about 1094.8483994649.

The spelling of 1312387132 in words is "one billion, three hundred twelve million, three hundred eighty-seven thousand, one hundred thirty-two".