1319313 has 4 divisors (see below), whose sum is σ = 1759088. Its totient is φ = 879540.

The previous prime is 1319293. The next prime is 1319321. The reversal of 1319313 is 3139131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1319313 - 2⁵ = 1319281 is a prime.

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 1319313.

It is not an unprimeable number, because it can be changed into a prime (1319323) 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 3 ways as a sum of consecutive naturals, for example, 219883 + ... + 219888.

It is an arithmetic number, because the mean of its divisors is an integer number (439772).

2^1319313 is an apocalyptic number.

It is an amenable number.

1319313 is a deficient number, since it is larger than the sum of its proper divisors (439775).

1319313 is an equidigital number, since it uses as much as digits as its factorization.

1319313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439774.

The product of its digits is 243, while the sum is 21.

The square root of 1319313 is about 1148.6135120222. The cubic root of 1319313 is about 109.6770971295.

The spelling of 1319313 in words is "one million, three hundred nineteen thousand, three hundred thirteen".