1318113 has 10 divisors (see below), whose sum is σ = 1969154. Its totient is φ = 878688.

The previous prime is 1318103. The next prime is 1318139. The reversal of 1318113 is 3118131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1306449 + 11664 = 1143^2 + 108^2 .

It is not a de Polignac number, because 1318113 - 2¹² = 1314017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318103) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8056 + ... + 8217.

2^1318113 is an apocalyptic number.

It is an amenable number.

1318113 is a deficient number, since it is larger than the sum of its proper divisors (651041).

1318113 is an equidigital number, since it uses as much as digits as its factorization.

1318113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16285 (or 16276 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1318113 is about 1148.0910242659. The cubic root of 1318113 is about 109.6438342520.

Adding to 1318113 its sum of digits (18), we get a palindrome (1318131).

It can be divided in two parts, 1318 and 113, that added together give a triangular number (1431 = T₅₃).

The spelling of 1318113 in words is "one million, three hundred eighteen thousand, one hundred thirteen".