1312983 has 16 divisors (see below), whose sum is σ = 2223360. Its totient is φ = 750168.

The previous prime is 1312967. The next prime is 1313041. The reversal of 1312983 is 3892131.

It is not a de Polignac number, because 1312983 - 2⁴ = 1312967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3285 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (138960).

2^1312983 is an apocalyptic number.

1312983 is a deficient number, since it is larger than the sum of its proper divisors (910377).

1312983 is an equidigital number, since it uses as much as digits as its factorization.

1312983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963 (or 6957 counting only the distinct ones).

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

The square root of 1312983 is about 1145.8547028310. The cubic root of 1312983 is about 109.5014073754.

Adding to 1312983 its sum of digits (27), we get a triangular number (1313010 = T₁₆₂₀).

It can be divided in two parts, 13 and 12983, that added together give a square (12996 = 114²).

The spelling of 1312983 in words is "one million, three hundred twelve thousand, nine hundred eighty-three".