1312148671 has 4 divisors (see below), whose sum is σ = 1325140344. Its totient is φ = 1299157000.

The previous prime is 1312148659. The next prime is 1312148693. The reversal of 1312148671 is 1768412131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312148671 - 2¹⁷ = 1312017599 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 (1312148371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6495685 + ... + 6495886.

It is an arithmetic number, because the mean of its divisors is an integer number (331285086).

Almost surely, 2^1312148671 is an apocalyptic number.

1312148671 is a deficient number, since it is larger than the sum of its proper divisors (12991673).

1312148671 is a wasteful number, since it uses less digits than its factorization.

1312148671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12991672.

The product of its digits is 8064, while the sum is 34.

The square root of 1312148671 is about 36223.5927400914. The cubic root of 1312148671 is about 1094.7820840584.

The spelling of 1312148671 in words is "one billion, three hundred twelve million, one hundred forty-eight thousand, six hundred seventy-one".