1312842 has 32 divisors (see below), whose sum is σ = 2839104. Its totient is φ = 403200.

The previous prime is 1312841. The next prime is 1312847. The reversal of 1312842 is 2482131.

1312842 is an undulating number in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312841) 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, 6117 + ... + 6327.

It is an arithmetic number, because the mean of its divisors is an integer number (88722).

2^1312842 is an apocalyptic number.

1312842 is an abundant number, since it is smaller than the sum of its proper divisors (1526262).

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

1312842 is a wasteful number, since it uses less digits than its factorization.

1312842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its digits is 384, while the sum is 21.

The square root of 1312842 is about 1145.7931750539. The cubic root of 1312842 is about 109.4974874843.

Adding to 1312842 its reverse (2482131), we get a palindrome (3794973).

The spelling of 1312842 in words is "one million, three hundred twelve thousand, eight hundred forty-two".