1313313 has 4 divisors (see below), whose sum is σ = 1751088.
Its totient is φ = 875540.
The previous prime is 1313311. The next prime is 1313317. The reversal of 1313313 is 3133131.
Adding to 1313313 its reverse (3133131), we get a palindrome (4446444).
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 a cyclic number.
It is not a de Polignac number, because 1313313 - 21 = 1313311 is a prime.
It is a nude number because it is divisible by every one of its digits.
It is a D-number.
It is a junction number, because it is equal to n+sod(n) for n = 1313292 and 1313301.
It is not an unprimeable number, because it can be changed into a prime (1313311) 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, 218883 + ... + 218888.
It is an arithmetic number, because the mean of its divisors is an integer number (437772).
21313313 is an apocalyptic number.
It is an amenable number.
1313313 is a deficient number, since it is larger than the sum of its proper divisors (437775).
1313313 is an equidigital number, since it uses as much as digits as its factorization.
1313313 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 437774.
The product of its digits is 81, while the sum is 15.
The square root of 1313313 is about 1145.9986910987.
The cubic root of 1313313 is about 109.5105804918.
The spelling of 1313313 in words is "one million, three hundred thirteen thousand, three hundred thirteen".