7131142 has 4 divisors (see below), whose sum is σ = 10696716. Its totient is φ = 3565570.

The previous prime is 7131139. The next prime is 7131191. The reversal of 7131142 is 2411317.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1782784 + ... + 1782787.

It is an arithmetic number, because the mean of its divisors is an integer number (2674179).

Almost surely, 2^7131142 is an apocalyptic number.

7131142 is a deficient number, since it is larger than the sum of its proper divisors (3565574).

7131142 is a wasteful number, since it uses less digits than its factorization.

7131142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565573.

The product of its digits is 168, while the sum is 19.

The square root of 7131142 is about 2670.4198171823. The cubic root of 7131142 is about 192.4803330670.

Adding to 7131142 its reverse (2411317), we get a palindrome (9542459).

It can be divided in two parts, 71 and 31142, that added together give a palindrome (31213).

The spelling of 7131142 in words is "seven million, one hundred thirty-one thousand, one hundred forty-two".