1318336671 has 8 divisors (see below), whose sum is σ = 1758325120. Its totient is φ = 878619672.

The previous prime is 1318336637. The next prime is 1318336727. The reversal of 1318336671 is 1766338131.

1318336671 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1318336671 - 2¹⁴ = 1318320287 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 (1318336771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56245 + ... + 76158.

It is an arithmetic number, because the mean of its divisors is an integer number (219790640).

Almost surely, 2^1318336671 is an apocalyptic number.

1318336671 is a deficient number, since it is larger than the sum of its proper divisors (439988449).

1318336671 is a wasteful number, since it uses less digits than its factorization.

1318336671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135725.

The product of its digits is 54432, while the sum is 39.

The square root of 1318336671 is about 36308.9062214768. The cubic root of 1318336671 is about 1096.5003573322.

The spelling of 1318336671 in words is "one billion, three hundred eighteen million, three hundred thirty-six thousand, six hundred seventy-one".