8123313 has 16 divisors (see below), whose sum is σ = 12136896. Its totient is φ = 4789440.

The previous prime is 8123303. The next prime is 8123321. The reversal of 8123313 is 3133218.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8123313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8123313.

It is not an unprimeable number, because it can be changed into a prime (8123303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2106 + ... + 4547.

It is an arithmetic number, because the mean of its divisors is an integer number (758556).

Almost surely, 2^8123313 is an apocalyptic number.

It is an amenable number.

8123313 is a deficient number, since it is larger than the sum of its proper divisors (4013583).

8123313 is a wasteful number, since it uses less digits than its factorization.

8123313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704.

The product of its digits is 432, while the sum is 21.

The square root of 8123313 is about 2850.1426280100. The cubic root of 8123313 is about 201.0223731933.

It can be divided in two parts, 8 and 123313, that added together give a palindrome (123321).

The spelling of 8123313 in words is "eight million, one hundred twenty-three thousand, three hundred thirteen".