1312028 has 6 divisors (see below), whose sum is σ = 2296056. Its totient is φ = 656012.

The previous prime is 1312027. The next prime is 1312079. The reversal of 1312028 is 8202131.

It is a junction number, because it is equal to n+sod(n) for n = 1311997 and 1312015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312027) by changing a digit.

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 as a sum of consecutive naturals, namely, 164000 + ... + 164007.

It is an arithmetic number, because the mean of its divisors is an integer number (382676).

2^1312028 is an apocalyptic number.

It is an amenable number.

1312028 is a deficient number, since it is larger than the sum of its proper divisors (984028).

1312028 is a wasteful number, since it uses less digits than its factorization.

1312028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328011 (or 328009 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1312028 is about 1145.4379075271. The cubic root of 1312028 is about 109.4748522694.

Adding to 1312028 its reverse (8202131), we get a palindrome (9514159).

The spelling of 1312028 in words is "one million, three hundred twelve thousand, twenty-eight".