313919 has 4 divisors (see below), whose sum is σ = 319896. Its totient is φ = 307944.

The previous prime is 313909. The next prime is 313921. The reversal of 313919 is 919313.

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

It is a cyclic number.

It is not a de Polignac number, because 313919 - 2¹² = 309823 is a prime.

It is a super-2 number, since 2×313919² = 197090277122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313919.

It is not an unprimeable number, because it can be changed into a prime (313909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909 + ... + 3014.

It is an arithmetic number, because the mean of its divisors is an integer number (79974).

2³¹³⁹¹⁹ is an apocalyptic number.

313919 is a deficient number, since it is larger than the sum of its proper divisors (5977).

313919 is an equidigital number, since it uses as much as digits as its factorization.

313919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976.

The product of its digits is 729, while the sum is 26.

The square root of 313919 is about 560.2847490339. The cubic root of 313919 is about 67.9629989012.

The spelling of 313919 in words is "three hundred thirteen thousand, nine hundred nineteen".