1317568 has 56 divisors (see below), whose sum is σ = 3182112. Its totient is φ = 528384.

The previous prime is 1317553. The next prime is 1317571. The reversal of 1317568 is 8657131.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 7530 + ... + 7702.

2^1317568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591056).

1317568 is an abundant number, since it is smaller than the sum of its proper divisors (1864544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317568 is a wasteful number, since it uses less digits than its factorization.

1317568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 199 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 1317568 is about 1147.8536492079. The cubic root of 1317568 is about 109.6287206951.

The spelling of 1317568 in words is "one million, three hundred seventeen thousand, five hundred sixty-eight".