8142313 has 4 divisors (see below), whose sum is σ = 8340948. Its totient is φ = 7943680.

The previous prime is 8142311. The next prime is 8142319. The reversal of 8142313 is 3132418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3132418 = 2 ⋅1566209.

It can be written as a sum of positive squares in 2 ways, for example, as 458329 + 7683984 = 677^2 + 2772^2 .

It is a cyclic number.

It is not a de Polignac number, because 8142313 - 2¹ = 8142311 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8142311) 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, 99256 + ... + 99337.

It is an arithmetic number, because the mean of its divisors is an integer number (2085237).

Almost surely, 2^8142313 is an apocalyptic number.

It is an amenable number.

8142313 is a deficient number, since it is larger than the sum of its proper divisors (198635).

8142313 is a wasteful number, since it uses less digits than its factorization.

8142313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198634.

The product of its digits is 576, while the sum is 22.

The square root of 8142313 is about 2853.4738477862. The cubic root of 8142313 is about 201.1789780639.

The spelling of 8142313 in words is "eight million, one hundred forty-two thousand, three hundred thirteen".