1317315 has 16 divisors (see below), whose sum is σ = 2148768. Its totient is φ = 688896.

The previous prime is 1317307. The next prime is 1317317. The reversal of 1317315 is 5137131.

It is not a de Polignac number, because 1317315 - 2³ = 1317307 is a prime.

It is an Ulam number.

1317315 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1317291 and 1317300.

It is not an unprimeable number, because it can be changed into a prime (1317317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34 + ... + 1623.

It is an arithmetic number, because the mean of its divisors is an integer number (134298).

2^1317315 is an apocalyptic number.

1317315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1317315 is a deficient number, since it is larger than the sum of its proper divisors (831453).

1317315 is a wasteful number, since it uses less digits than its factorization.

1317315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718.

The product of its digits is 315, while the sum is 21.

The square root of 1317315 is about 1147.7434382300. The cubic root of 1317315 is about 109.6217032605.

The spelling of 1317315 in words is "one million, three hundred seventeen thousand, three hundred fifteen".