3012209509 has 2 divisors, whose sum is σ = 3012209510. Its totient is φ = 3012209508.

The previous prime is 3012209503. The next prime is 3012209521. The reversal of 3012209509 is 9059022103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1607609025 + 1404600484 = 40095^2 + 37478^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012209509 - 2⁵ = 3012209477 is a prime.

It is a super-2 number, since 2×3012209509² = 18146812252220042162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3012209503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1506104754 + 1506104755.

It is an arithmetic number, because the mean of its divisors is an integer number (1506104755).

Almost surely, 2^3012209509 is an apocalyptic number.

It is an amenable number.

3012209509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3012209509 is an equidigital number, since it uses as much as digits as its factorization.

3012209509 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 3012209509 is about 54883.5996359568. The cubic root of 3012209509 is about 1444.2034952160.

It can be divided in two parts, 3012 and 209509, that added together give a square (212521 = 461²).

The spelling of 3012209509 in words is "three billion, twelve million, two hundred nine thousand, five hundred nine".