1317505 has 8 divisors (see below), whose sum is σ = 1806912. Its totient is φ = 903408.

The previous prime is 1317493. The next prime is 1317521. The reversal of 1317505 is 5057131.

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

It is a cyclic number.

It is not a de Polignac number, because 1317505 - 2⁷ = 1317377 is a prime.

It is a Duffinian number.

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, 18787 + ... + 18856.

It is an arithmetic number, because the mean of its divisors is an integer number (225864).

2^1317505 is an apocalyptic number.

It is an amenable number.

1317505 is a deficient number, since it is larger than the sum of its proper divisors (489407).

1317505 is an equidigital number, since it uses as much as digits as its factorization.

1317505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37655.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 1317505 is about 1147.8262063570. The cubic root of 1317505 is about 109.6269733547.

The spelling of 1317505 in words is "one million, three hundred seventeen thousand, five hundred five".