1313165 has 16 divisors (see below), whose sum is σ = 1907712. Its totient is φ = 847104.

The previous prime is 1313161. The next prime is 1313171. The reversal of 1313165 is 5613131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1313165 - 2² = 1313161 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 (1313161) 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, 509 + ... + 1698.

It is an arithmetic number, because the mean of its divisors is an integer number (119232).

2^1313165 is an apocalyptic number.

It is an amenable number.

1313165 is a deficient number, since it is larger than the sum of its proper divisors (594547).

1313165 is a wasteful number, since it uses less digits than its factorization.

1313165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its digits is 270, while the sum is 20.

The square root of 1313165 is about 1145.9341167798. The cubic root of 1313165 is about 109.5064666781.

Adding to 1313165 its reverse (5613131), we get a palindrome (6926296).

The spelling of 1313165 in words is "one million, three hundred thirteen thousand, one hundred sixty-five".