1317303 has 28 divisors (see below), whose sum is σ = 2142280. Its totient is φ = 804816.

The previous prime is 1317301. The next prime is 1317307. The reversal of 1317303 is 3037131.

It is not a de Polignac number, because 1317303 - 2¹ = 1317301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9408 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (76510).

2^1317303 is an apocalyptic number.

1317303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1317303 is a deficient number, since it is larger than the sum of its proper divisors (824977).

1317303 is an equidigital number, since it uses as much as digits as its factorization.

1317303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 1317303 is about 1147.7382105689. The cubic root of 1317303 is about 109.6213703955.

The spelling of 1317303 in words is "one million, three hundred seventeen thousand, three hundred three".