1311834 has 16 divisors (see below), whose sum is σ = 2645280. Its totient is φ = 433680.

The previous prime is 1311829. The next prime is 1311847. The reversal of 1311834 is 4381131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311834.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49 + ... + 1620.

It is an arithmetic number, because the mean of its divisors is an integer number (165330).

2^1311834 is an apocalyptic number.

1311834 is an abundant number, since it is smaller than the sum of its proper divisors (1333446).

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

1311834 is a wasteful number, since it uses less digits than its factorization.

1311834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805.

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

The square root of 1311834 is about 1145.3532206267. The cubic root of 1311834 is about 109.4694562544.

Adding to 1311834 its reverse (4381131), we get a palindrome (5692965).

It can be divided in two parts, 1311 and 834, that added together give a triangular number (2145 = T₆₅).

The spelling of 1311834 in words is "one million, three hundred eleven thousand, eight hundred thirty-four".