7143118 has 4 divisors (see below), whose sum is σ = 10714680. Its totient is φ = 3571558.

The previous prime is 7143089. The next prime is 7143119. The reversal of 7143118 is 8113417.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 7143092 and 7143101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7143119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1785778 + ... + 1785781.

It is an arithmetic number, because the mean of its divisors is an integer number (2678670).

Almost surely, 2^7143118 is an apocalyptic number.

7143118 is a deficient number, since it is larger than the sum of its proper divisors (3571562).

7143118 is a wasteful number, since it uses less digits than its factorization.

7143118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571561.

The product of its digits is 672, while the sum is 25.

The square root of 7143118 is about 2672.6612205815. The cubic root of 7143118 is about 192.5880229365.

Subtracting 7143118 from its reverse (8113417), we obtain a cube (970299 = 99³).

The spelling of 7143118 in words is "seven million, one hundred forty-three thousand, one hundred eighteen".