2170369009 has 4 divisors (see below), whose sum is σ = 2182360180. Its totient is φ = 2158377840.

The previous prime is 2170369001. The next prime is 2170369013. The reversal of 2170369009 is 9009630712.

2170369009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7840000 + 2162529009 = 2800^2 + 46503^2 .

It is a cyclic number.

It is not a de Polignac number, because 2170369009 - 2³ = 2170369001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2170369001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5995314 + ... + 5995675.

It is an arithmetic number, because the mean of its divisors is an integer number (545590045).

Almost surely, 2^2170369009 is an apocalyptic number.

It is an amenable number.

2170369009 is a deficient number, since it is larger than the sum of its proper divisors (11991171).

2170369009 is a wasteful number, since it uses less digits than its factorization.

2170369009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991170.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 2170369009 is about 46587.2193739871. The cubic root of 2170369009 is about 1294.7259715448.

The spelling of 2170369009 in words is "two billion, one hundred seventy million, three hundred sixty-nine thousand, nine".