1317313481 has 8 divisors (see below), whose sum is σ = 1457310528. Its totient is φ = 1180690000.

The previous prime is 1317313427. The next prime is 1317313513. The reversal of 1317313481 is 1843137131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317313481 is a prime.

It is a super-2 number, since 2×1317313481² = 3470629614448674722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317313181) 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, 842570 + ... + 844131.

It is an arithmetic number, because the mean of its divisors is an integer number (182163816).

Almost surely, 2^1317313481 is an apocalyptic number.

1317313481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1317313481 is a deficient number, since it is larger than the sum of its proper divisors (139997047).

1317313481 is a wasteful number, since it uses less digits than its factorization.

1317313481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686783.

The product of its digits is 6048, while the sum is 32.

The square root of 1317313481 is about 36294.8134173466. The cubic root of 1317313481 is about 1096.2166112549.

The spelling of 1317313481 in words is "one billion, three hundred seventeen million, three hundred thirteen thousand, four hundred eighty-one".