2130009 has 8 divisors (see below), whose sum is σ = 3245760. Its totient is φ = 1217136.

The previous prime is 2130001. The next prime is 2130013. The reversal of 2130009 is 9000312.

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

It is not a de Polignac number, because 2130009 - 2³ = 2130001 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2130009.

It is not an unprimeable number, because it can be changed into a prime (2130001) 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, 50694 + ... + 50735.

It is an arithmetic number, because the mean of its divisors is an integer number (405720).

2^2130009 is an apocalyptic number.

It is an amenable number.

2130009 is a deficient number, since it is larger than the sum of its proper divisors (1115751).

2130009 is a wasteful number, since it uses less digits than its factorization.

2130009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101439.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2130009 is about 1459.4550352786. The cubic root of 2130009 is about 128.6650163402.

The spelling of 2130009 in words is "two million, one hundred thirty thousand, nine".