2209130509 has 2 divisors, whose sum is σ = 2209130510. Its totient is φ = 2209130508.

The previous prime is 2209130447. The next prime is 2209130527. The reversal of 2209130509 is 9050319022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2005069284 + 204061225 = 44778^2 + 14285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2209130509 - 2¹³ = 2209122317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2209130579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104565254 + 1104565255.

It is an arithmetic number, because the mean of its divisors is an integer number (1104565255).

Almost surely, 2^2209130509 is an apocalyptic number.

It is an amenable number.

2209130509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2209130509 is an equidigital number, since it uses as much as digits as its factorization.

2209130509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 2209130509 is about 47001.3883731109. The cubic root of 2209130509 is about 1302.3882152756.

The spelling of 2209130509 in words is "two billion, two hundred nine million, one hundred thirty thousand, five hundred nine".