7131140 has 24 divisors (see below), whose sum is σ = 15082200. Its totient is φ = 2832128.

The previous prime is 7131139. The next prime is 7131191. The reversal of 7131140 is 411317.

It can be written as a sum of positive squares in 4 ways, for example, as 329476 + 6801664 = 574^2 + 2608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784 + ... + 4176.

It is an arithmetic number, because the mean of its divisors is an integer number (628425).

Almost surely, 2^7131140 is an apocalyptic number.

It is an amenable number.

7131140 is an abundant number, since it is smaller than the sum of its proper divisors (7951060).

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

7131140 is a wasteful number, since it uses less digits than its factorization.

7131140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551 (or 2549 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 7131140 is about 2670.4194427093. The cubic root of 7131140 is about 192.4803150726.

Adding to 7131140 its reverse (411317), we get a palindrome (7542457).

The spelling of 7131140 in words is "seven million, one hundred thirty-one thousand, one hundred forty".