7131485 has 8 divisors (see below), whose sum is σ = 8579256. Its totient is φ = 5690880.

The previous prime is 7131469. The next prime is 7131503. The reversal of 7131485 is 5841317.

7131485 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 151321 + 6980164 = 389^2 + 2642^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7131485 - 2⁴ = 7131469 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725 + ... + 3845.

It is an arithmetic number, because the mean of its divisors is an integer number (1072407).

Almost surely, 2^7131485 is an apocalyptic number.

It is an amenable number.

7131485 is a deficient number, since it is larger than the sum of its proper divisors (1447771).

7131485 is a wasteful number, since it uses less digits than its factorization.

7131485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583.

The product of its digits is 3360, while the sum is 29.

The square root of 7131485 is about 2670.4840385219. The cubic root of 7131485 is about 192.4834190475.

The spelling of 7131485 in words is "seven million, one hundred thirty-one thousand, four hundred eighty-five".