1313318 has 24 divisors (see below), whose sum is σ = 2221992. Its totient is φ = 580032.

The previous prime is 1313317. The next prime is 1313329. The reversal of 1313318 is 8133131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313311) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12221 + ... + 12327.

It is an arithmetic number, because the mean of its divisors is an integer number (92583).

2^1313318 is an apocalyptic number.

1313318 is a deficient number, since it is larger than the sum of its proper divisors (908674).

1313318 is a wasteful number, since it uses less digits than its factorization.

1313318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 145 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1313318 is about 1146.0008726000. Note that the first 3 decimals coincide. The cubic root of 1313318 is about 109.5107194666.

Adding to 1313318 its reverse (8133131), we get a palindrome (9446449).

It can be divided in two parts, 13 and 13318, that added together give a palindrome (13331).

The spelling of 1313318 in words is "one million, three hundred thirteen thousand, three hundred eighteen".