3145446209 has 2 divisors, whose sum is σ = 3145446210. Its totient is φ = 3145446208.

The previous prime is 3145446193. The next prime is 3145446223. The reversal of 3145446209 is 9026445413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2794708225 + 350737984 = 52865^2 + 18728^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145446209 - 2⁴ = 3145446193 is a prime.

It is not a weakly prime, because it can be changed into another prime (3145446229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572723104 + 1572723105.

It is an arithmetic number, because the mean of its divisors is an integer number (1572723105).

Almost surely, 2^3145446209 is an apocalyptic number.

It is an amenable number.

3145446209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145446209 is an equidigital number, since it uses as much as digits as its factorization.

3145446209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 3145446209 is about 56084.2777344953. The cubic root of 3145446209 is about 1465.1904777823.

The spelling of 3145446209 in words is "three billion, one hundred forty-five million, four hundred forty-six thousand, two hundred nine".