1313565 has 32 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 601920.

The previous prime is 1313467. The next prime is 1313567. The reversal of 1313565 is 5653131.

It is not a de Polignac number, because 1313565 - 2¹³ = 1305373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2926 + ... + 3344.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1313565 is an apocalyptic number.

1313565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313565 is a deficient number, since it is larger than the sum of its proper divisors (1105635).

1313565 is a wasteful number, since it uses less digits than its factorization.

1313565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457.

The product of its digits is 1350, while the sum is 24.

The square root of 1313565 is about 1146.1086335946. The cubic root of 1313565 is about 109.5175843823.

Adding to 1313565 its reverse (5653131), we get a palindrome (6966696).

The spelling of 1313565 in words is "one million, three hundred thirteen thousand, five hundred sixty-five".