7983142 has 4 divisors (see below), whose sum is σ = 11974716. Its totient is φ = 3991570.

The previous prime is 7983133. The next prime is 7983161. The reversal of 7983142 is 2413897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2413897 = 503 ⋅4799.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7983098 and 7983107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1995784 + ... + 1995787.

It is an arithmetic number, because the mean of its divisors is an integer number (2993679).

Almost surely, 2^7983142 is an apocalyptic number.

7983142 is a deficient number, since it is larger than the sum of its proper divisors (3991574).

7983142 is a wasteful number, since it uses less digits than its factorization.

7983142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991573.

The product of its digits is 12096, while the sum is 34.

The square root of 7983142 is about 2825.4454516058. The cubic root of 7983142 is about 199.8594178731.

The spelling of 7983142 in words is "seven million, nine hundred eighty-three thousand, one hundred forty-two".