1312893 has 12 divisors (see below), whose sum is σ = 2008188. Its totient is φ = 823680.

The previous prime is 1312891. The next prime is 1312907. The reversal of 1312893 is 3982131.

It can be written as a sum of positive squares in 2 ways, for example, as 356409 + 956484 = 597^2 + 978^2 .

It is not a de Polignac number, because 1312893 - 2¹ = 1312891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4138 + ... + 4443.

It is an arithmetic number, because the mean of its divisors is an integer number (167349).

2^1312893 is an apocalyptic number.

It is an amenable number.

1312893 is a deficient number, since it is larger than the sum of its proper divisors (695295).

1312893 is a wasteful number, since it uses less digits than its factorization.

1312893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604 (or 8601 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1312893 is about 1145.8154301632. The cubic root of 1312893 is about 109.4989053497.

The spelling of 1312893 in words is "one million, three hundred twelve thousand, eight hundred ninety-three".