1312712 has 8 divisors (see below), whose sum is σ = 2461350. Its totient is φ = 656352.

The previous prime is 1312681. The next prime is 1312733. The reversal of 1312712 is 2172131.

It can be written as a sum of positive squares in only one way, i.e., 682276 + 630436 = 826^2 + 794^2 .

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82037 + ... + 82052.

2^1312712 is an apocalyptic number.

It is an amenable number.

1312712 is a deficient number, since it is larger than the sum of its proper divisors (1148638).

1312712 is a wasteful number, since it uses less digits than its factorization.

1312712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164095 (or 164091 counting only the distinct ones).

The product of its digits is 84, while the sum is 17.

The square root of 1312712 is about 1145.7364443885. The cubic root of 1312712 is about 109.4938731516.

Adding to 1312712 its reverse (2172131), we get a palindrome (3484843).

The spelling of 1312712 in words is "one million, three hundred twelve thousand, seven hundred twelve".