71300009 has 16 divisors (see below), whose sum is σ = 80809920. Its totient is φ = 62314560.

The previous prime is 71300003. The next prime is 71300011. The reversal of 71300009 is 90000317.

It is a de Polignac number, because none of the positive numbers 2^k-71300009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71300003) 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 15 ways as a sum of consecutive naturals, for example, 126362 + ... + 126924.

It is an arithmetic number, because the mean of its divisors is an integer number (5050620).

Almost surely, 2^71300009 is an apocalyptic number.

It is an amenable number.

71300009 is a deficient number, since it is larger than the sum of its proper divisors (9509911).

71300009 is a wasteful number, since it uses less digits than its factorization.

71300009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 71300009 is about 8443.9332659608. The cubic root of 71300009 is about 414.6641866521.

The spelling of 71300009 in words is "seventy-one million, three hundred thousand, nine".