1312073 has 6 divisors (see below), whose sum is σ = 1526346. Its totient is φ = 1124592.

The previous prime is 1312027. The next prime is 1312079. The reversal of 1312073 is 3702131.

It can be written as a sum of positive squares in only one way, i.e., 906304 + 405769 = 952^2 + 637^2 .

It is not a de Polignac number, because 1312073 - 2¹⁶ = 1246537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312079) 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 in 5 ways as a sum of consecutive naturals, for example, 13340 + ... + 13437.

It is an arithmetic number, because the mean of its divisors is an integer number (254391).

2^1312073 is an apocalyptic number.

It is an amenable number.

1312073 is a deficient number, since it is larger than the sum of its proper divisors (214273).

1312073 is an equidigital number, since it uses as much as digits as its factorization.

1312073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26791 (or 26784 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1312073 is about 1145.4575505011. The cubic root of 1312073 is about 109.4761038464.

The spelling of 1312073 in words is "one million, three hundred twelve thousand, seventy-three".