7131275 has 6 divisors (see below), whose sum is σ = 8842812. Its totient is φ = 5705000.

The previous prime is 7131259. The next prime is 7131281. The reversal of 7131275 is 5721317.

It is not a de Polignac number, because 7131275 - 2⁴ = 7131259 is a prime.

It is a Duffinian 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 in 5 ways as a sum of consecutive naturals, for example, 142601 + ... + 142650.

It is an arithmetic number, because the mean of its divisors is an integer number (1473802).

Almost surely, 2^7131275 is an apocalyptic number.

7131275 is a deficient number, since it is larger than the sum of its proper divisors (1711537).

7131275 is a wasteful number, since it uses less digits than its factorization.

7131275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285261 (or 285256 counting only the distinct ones).

The product of its digits is 1470, while the sum is 26.

The square root of 7131275 is about 2670.4447195177. Note that the first 3 decimals coincide. The cubic root of 7131275 is about 192.4815296834.

The spelling of 7131275 in words is "seven million, one hundred thirty-one thousand, two hundred seventy-five".