7139743009 has 9 divisors (see below), whose sum is σ = 8306103441. Its totient is φ = 6119272740.

The previous prime is 7139742983. The next prime is 7139743033. The reversal of 7139743009 is 9003479317.

The square root of 7139743009 is 84497.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-7139743009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7139743309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 585444 + ... + 597514.

Almost surely, 2^7139743009 is an apocalyptic number.

7139743009 is the 84497-th square number.

7139743009 is the 42249-th centered octagonal number.

It is an amenable number.

7139743009 is a deficient number, since it is larger than the sum of its proper divisors (1166360432).

7139743009 is an frugal number, since it uses more digits than its factorization.

7139743009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24156 (or 12078 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 43.

The cubic root of 7139743009 is about 1925.5768673325.

The spelling of 7139743009 in words is "seven billion, one hundred thirty-nine million, seven hundred forty-three thousand, nine".