1317968 has 10 divisors (see below), whose sum is σ = 2553594. Its totient is φ = 658976.

The previous prime is 1317961. The next prime is 1317971. The reversal of 1317968 is 8697131.

It can be written as a sum of positive squares in only one way, i.e., 1317904 + 64 = 1148^2 + 8^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41171 + ... + 41202.

2^1317968 is an apocalyptic number.

It is an amenable number.

1317968 is a deficient number, since it is larger than the sum of its proper divisors (1235626).

1317968 is an equidigital number, since it uses as much as digits as its factorization.

1317968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82381 (or 82375 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 1317968 is about 1148.0278742261. The cubic root of 1317968 is about 109.6398136208.

The spelling of 1317968 in words is "one million, three hundred seventeen thousand, nine hundred sixty-eight".