313216 has 16 divisors (see below), whose sum is σ = 624240. Its totient is φ = 156544.

The previous prime is 313211. The next prime is 313219. The reversal of 313216 is 612313.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a self number, because there is not a number n which added to its sum of digits gives 313216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313211) 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 as a sum of consecutive naturals, namely, 1096 + ... + 1351.

It is an arithmetic number, because the mean of its divisors is an integer number (39015).

2³¹³²¹⁶ is an apocalyptic number.

It is an amenable number.

313216 is a deficient number, since it is larger than the sum of its proper divisors (311024).

313216 is an equidigital number, since it uses as much as digits as its factorization.

313216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461 (or 2449 counting only the distinct ones).

The product of its digits is 108, while the sum is 16.

The square root of 313216 is about 559.6570378366. The cubic root of 313216 is about 67.9122281633.

Adding to 313216 its reverse (612313), we get a palindrome (925529).

It can be divided in two parts, 313 and 216, that added together give a square (529 = 23²).

The spelling of 313216 in words is "three hundred thirteen thousand, two hundred sixteen".