8143142 has 32 divisors (see below), whose sum is σ = 14929920. Its totient is φ = 3255840.

The previous prime is 8143141. The next prime is 8143147. The reversal of 8143142 is 2413418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8143141) 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, 12263 + ... + 12909.

It is an arithmetic number, because the mean of its divisors is an integer number (466560).

Almost surely, 2^8143142 is an apocalyptic number.

8143142 is a deficient number, since it is larger than the sum of its proper divisors (6786778).

8143142 is a wasteful number, since it uses less digits than its factorization.

8143142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716.

The product of its digits is 768, while the sum is 23.

The square root of 8143142 is about 2853.6191056271. The cubic root of 8143142 is about 201.1858054324.

The spelling of 8143142 in words is "eight million, one hundred forty-three thousand, one hundred forty-two".