1312342 has 4 divisors (see below), whose sum is σ = 1968516. Its totient is φ = 656170.

The previous prime is 1312331. The next prime is 1312343. The reversal of 1312342 is 2432131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328084 + ... + 328087.

It is an arithmetic number, because the mean of its divisors is an integer number (492129).

2^1312342 is an apocalyptic number.

1312342 is a deficient number, since it is larger than the sum of its proper divisors (656174).

1312342 is an equidigital number, since it uses as much as digits as its factorization.

1312342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656173.

The product of its digits is 144, while the sum is 16.

The square root of 1312342 is about 1145.5749648102. The cubic root of 1312342 is about 109.4835848985.

Adding to 1312342 its reverse (2432131), we get a palindrome (3744473).

The spelling of 1312342 in words is "one million, three hundred twelve thousand, three hundred forty-two".