3144521309 has 2 divisors, whose sum is σ = 3144521310. Its totient is φ = 3144521308.

The previous prime is 3144521221. The next prime is 3144521321. The reversal of 3144521309 is 9031254413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1844702500 + 1299818809 = 42950^2 + 36053^2 .

It is a cyclic number.

It is not a de Polignac number, because 3144521309 - 2²⁰ = 3143472733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3144524309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572260654 + 1572260655.

It is an arithmetic number, because the mean of its divisors is an integer number (1572260655).

Almost surely, 2^3144521309 is an apocalyptic number.

It is an amenable number.

3144521309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3144521309 is an equidigital number, since it uses as much as digits as its factorization.

3144521309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3144521309 is about 56076.0315018814. The cubic root of 3144521309 is about 1465.0468534833.

The spelling of 3144521309 in words is "three billion, one hundred forty-four million, five hundred twenty-one thousand, three hundred nine".