1312081792 has 64 divisors (see below), whose sum is σ = 3000954240. Its totient is φ = 559756800.

The previous prime is 1312081787. The next prime is 1312081801. The reversal of 1312081792 is 2971802131.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200167 + ... + 206617.

It is an arithmetic number, because the mean of its divisors is an integer number (46889910).

Almost surely, 2^1312081792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312081792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500477120).

1312081792 is an abundant number, since it is smaller than the sum of its proper divisors (1688872448).

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

1312081792 is an equidigital number, since it uses as much as digits as its factorization.

1312081792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699 (or 6687 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1312081792 is about 36222.6695868761. The cubic root of 1312081792 is about 1094.7634837335.

The spelling of 1312081792 in words is "one billion, three hundred twelve million, eighty-one thousand, seven hundred ninety-two".