7131139 has 2 divisors, whose sum is σ = 7131140. Its totient is φ = 7131138.

The previous prime is 7131133. The next prime is 7131191. The reversal of 7131139 is 9311317.

7131139 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 a cyclic number.

It is not a de Polignac number, because 7131139 - 2¹¹ = 7129091 is a prime.

It is not a weakly prime, because it can be changed into another prime (7131133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3565569 + 3565570.

It is an arithmetic number, because the mean of its divisors is an integer number (3565570).

Almost surely, 2^7131139 is an apocalyptic number.

7131139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7131139 is an equidigital number, since it uses as much as digits as its factorization.

7131139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567, while the sum is 25.

The square root of 7131139 is about 2670.4192554728. The cubic root of 7131139 is about 192.4803060754.

The spelling of 7131139 in words is "seven million, one hundred thirty-one thousand, one hundred thirty-nine".