3113305209 has 27 divisors (see below), whose sum is σ = 5233169487. Its totient is φ = 1778361984.

The previous prime is 3113305201. The next prime is 3113305243. The reversal of 3113305209 is 9025033113.

It is a happy number.

The square root of 3113305209 is 55797.

It is a perfect power (a square), and thus also a powerful number.

3113305209 is a `hidden beast` number, since 3 + 1 + 133 + 0 + 520 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2029052025 + 1084253184 = 45045^2 + 32928^2 .

It is not a de Polignac number, because 3113305209 - 2³ = 3113305201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3113305201) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1170409 + ... + 1173065.

Almost surely, 2^3113305209 is an apocalyptic number.

3113305209 is the 55797-th square number.

3113305209 is the 27899-th centered octagonal number.

It is an amenable number.

3113305209 is a deficient number, since it is larger than the sum of its proper divisors (2119864278).

3113305209 is an frugal number, since it uses more digits than its factorization.

3113305209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The cubic root of 3113305209 is about 1460.1828145695.

The spelling of 3113305209 in words is "three billion, one hundred thirteen million, three hundred five thousand, two hundred nine".