1312485671 has 8 divisors (see below), whose sum is σ = 1500308640. Its totient is φ = 1124743968.

The previous prime is 1312485661. The next prime is 1312485673. The reversal of 1312485671 is 1765842131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312485671 - 2¹⁰ = 1312484647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312485673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19505 + ... + 54821.

It is an arithmetic number, because the mean of its divisors is an integer number (187538580).

Almost surely, 2^1312485671 is an apocalyptic number.

1312485671 is a deficient number, since it is larger than the sum of its proper divisors (187822969).

1312485671 is an equidigital number, since it uses as much as digits as its factorization.

1312485671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40633.

The product of its digits is 40320, while the sum is 38.

The square root of 1312485671 is about 36228.2441059458. The cubic root of 1312485671 is about 1094.8758005683.

The spelling of 1312485671 in words is "one billion, three hundred twelve million, four hundred eighty-five thousand, six hundred seventy-one".