1315983 has 4 divisors (see below), whose sum is σ = 1754648. Its totient is φ = 877320.

The previous prime is 1315969. The next prime is 1316009. The reversal of 1315983 is 3895131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1315983 - 2⁴ = 1315967 is a prime.

It is a super-2 number, since 2×1315983² = 3463622512578, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219328 + ... + 219333.

It is an arithmetic number, because the mean of its divisors is an integer number (438662).

2^1315983 is an apocalyptic number.

1315983 is a deficient number, since it is larger than the sum of its proper divisors (438665).

1315983 is an equidigital number, since it uses as much as digits as its factorization.

1315983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438664.

The product of its digits is 3240, while the sum is 30.

The square root of 1315983 is about 1147.1630224166. The cubic root of 1315983 is about 109.5847428901.

The spelling of 1315983 in words is "one million, three hundred fifteen thousand, nine hundred eighty-three".