8142312 has 16 divisors (see below), whose sum is σ = 20355840. Its totient is φ = 2714096.

The previous prime is 8142311. The next prime is 8142319. The reversal of 8142312 is 2132418.

It is a nude number because it is divisible by every one of its digits.

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, 169608 + ... + 169655.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 2^8142312 is an apocalyptic number.

It is an amenable number.

8142312 is an abundant number, since it is smaller than the sum of its proper divisors (12213528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8142312 is a wasteful number, since it uses less digits than its factorization.

8142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339272 (or 339268 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 8142312 is about 2853.4736725612. The cubic root of 8142312 is about 201.1789698280.

The spelling of 8142312 in words is "eight million, one hundred forty-two thousand, three hundred twelve".