1311316 has 6 divisors (see below), whose sum is σ = 2294810. Its totient is φ = 655656.

The previous prime is 1311311. The next prime is 1311341. The reversal of 1311316 is 6131131.

It can be written as a sum of positive squares in only one way, i.e., 883600 + 427716 = 940^2 + 654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1311316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163911 + ... + 163918.

2^1311316 is an apocalyptic number.

It is an amenable number.

1311316 is a deficient number, since it is larger than the sum of its proper divisors (983494).

1311316 is a wasteful number, since it uses less digits than its factorization.

1311316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327833 (or 327831 counting only the distinct ones).

The product of its digits is 54, while the sum is 16.

The square root of 1311316 is about 1145.1270671851. The cubic root of 1311316 is about 109.4550457310.

Adding to 1311316 its reverse (6131131), we get a palindrome (7442447).

The spelling of 1311316 in words is "one million, three hundred eleven thousand, three hundred sixteen".