7131727 has 2 divisors, whose sum is σ = 7131728. Its totient is φ = 7131726.

The previous prime is 7131703. The next prime is 7131779. The reversal of 7131727 is 7271317.

7131727 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7271317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7131727 - 2¹⁹ = 6607439 is a prime.

7131727 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7131695 and 7131704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7131797) by changing a digit.

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 as a sum of consecutive naturals, namely, 3565863 + 3565864.

It is an arithmetic number, because the mean of its divisors is an integer number (3565864).

Almost surely, 2^7131727 is an apocalyptic number.

7131727 is a deficient number, since it is larger than the sum of its proper divisors (1).

7131727 is an equidigital number, since it uses as much as digits as its factorization.

7131727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2058, while the sum is 28.

The square root of 7131727 is about 2670.5293482754. The cubic root of 7131727 is about 192.4855962687.

The spelling of 7131727 in words is "seven million, one hundred thirty-one thousand, seven hundred twenty-seven".