2130427709 has 8 divisors (see below), whose sum is σ = 2265111288. Its totient is φ = 1996784640.

The previous prime is 2130427661. The next prime is 2130427723. The reversal of 2130427709 is 9077240312.

It can be written as a sum of positive squares in 4 ways, for example, as 1358143609 + 772284100 = 36853^2 + 27790^2 .

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

It is not a de Polignac number, because 2130427709 - 2¹² = 2130423613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130427729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255902 + ... + 264095.

It is an arithmetic number, because the mean of its divisors is an integer number (283138911).

Almost surely, 2^2130427709 is an apocalyptic number.

It is an amenable number.

2130427709 is a deficient number, since it is larger than the sum of its proper divisors (134683579).

2130427709 is a wasteful number, since it uses less digits than its factorization.

2130427709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520255.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 2130427709 is about 46156.5565115077. The cubic root of 2130427709 is about 1286.7344661297.

The spelling of 2130427709 in words is "two billion, one hundred thirty million, four hundred twenty-seven thousand, seven hundred nine".