1313305 has 16 divisors (see below), whose sum is σ = 1820160. Its totient is φ = 891072.

The previous prime is 1313297. The next prime is 1313311. The reversal of 1313305 is 5033131.

It is not a de Polignac number, because 1313305 - 2³ = 1313297 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5376 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (113760).

2^1313305 is an apocalyptic number.

It is an amenable number.

1313305 is a deficient number, since it is larger than the sum of its proper divisors (506855).

1313305 is a wasteful number, since it uses less digits than its factorization.

1313305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 1313305 is about 1145.9952006880. The cubic root of 1313305 is about 109.5103581314.

Adding to 1313305 its reverse (5033131), we get a palindrome (6346436).

The spelling of 1313305 in words is "one million, three hundred thirteen thousand, three hundred five".