1311348 has 12 divisors (see below), whose sum is σ = 3059840. Its totient is φ = 437112.

The previous prime is 1311341. The next prime is 1311353. The reversal of 1311348 is 8431131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311341) 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 3 ways as a sum of consecutive naturals, for example, 54628 + ... + 54651.

2^1311348 is an apocalyptic number.

It is an amenable number.

1311348 is an abundant number, since it is smaller than the sum of its proper divisors (1748492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311348 is a wasteful number, since it uses less digits than its factorization.

1311348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109286 (or 109284 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 1311348 is about 1145.1410393484. The cubic root of 1311348 is about 109.4559360664.

Adding to 1311348 its reverse (8431131), we get a palindrome (9742479).

The spelling of 1311348 in words is "one million, three hundred eleven thousand, three hundred forty-eight".