1311282 has 32 divisors (see below), whose sum is σ = 3331200. Its totient is φ = 374544.

The previous prime is 1311263. The next prime is 1311287. The reversal of 1311282 is 2821131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1311287) 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, 1357 + ... + 2112.

It is an arithmetic number, because the mean of its divisors is an integer number (104100).

2^1311282 is an apocalyptic number.

1311282 is an abundant number, since it is smaller than the sum of its proper divisors (2019918).

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

1311282 is a wasteful number, since it uses less digits than its factorization.

1311282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487 (or 3481 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1311282 is about 1145.1122215748. The cubic root of 1311282 is about 109.4540997339.

The spelling of 1311282 in words is "one million, three hundred eleven thousand, two hundred eighty-two".