1312456 has 8 divisors (see below), whose sum is σ = 2460870. Its totient is φ = 656224.

The previous prime is 1312411. The next prime is 1312459. The reversal of 1312456 is 6542131.

It can be written as a sum of positive squares in only one way, i.e., 749956 + 562500 = 866^2 + 750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1312459) 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, 82021 + ... + 82036.

2^1312456 is an apocalyptic number.

It is an amenable number.

1312456 is a deficient number, since it is larger than the sum of its proper divisors (1148414).

1312456 is a wasteful number, since it uses less digits than its factorization.

1312456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164063 (or 164059 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1312456 is about 1145.6247204037. The cubic root of 1312456 is about 109.4867549988.

Adding to 1312456 its reverse (6542131), we get a palindrome (7854587).

The spelling of 1312456 in words is "one million, three hundred twelve thousand, four hundred fifty-six".