1312804 has 12 divisors (see below), whose sum is σ = 2346624. Its totient is φ = 642344.

The previous prime is 1312789. The next prime is 1312813. The reversal of 1312804 is 4082131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3304 + ... + 3679.

It is an arithmetic number, because the mean of its divisors is an integer number (195552).

2^1312804 is an apocalyptic number.

It is an amenable number.

1312804 is a deficient number, since it is larger than the sum of its proper divisors (1033820).

1312804 is a wasteful number, since it uses less digits than its factorization.

1312804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034 (or 7032 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1312804 is about 1145.7765925345. The cubic root of 1312804 is about 109.4964310117.

Adding to 1312804 its reverse (4082131), we get a palindrome (5394935).

It can be divided in two parts, 1312 and 804, that added together give a square (2116 = 46²).

The spelling of 1312804 in words is "one million, three hundred twelve thousand, eight hundred four".