3144316561 has 4 divisors (see below), whose sum is σ = 3252741300. Its totient is φ = 3035891824.

The previous prime is 3144316541. The next prime is 3144316601. The reversal of 3144316561 is 1656134413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1133332225 + 2010984336 = 33665^2 + 44844^2 .

It is a cyclic number.

It is not a de Polignac number, because 3144316561 - 2⁷ = 3144316433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3144316501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54212326 + ... + 54212383.

It is an arithmetic number, because the mean of its divisors is an integer number (813185325).

Almost surely, 2^3144316561 is an apocalyptic number.

It is an amenable number.

3144316561 is a deficient number, since it is larger than the sum of its proper divisors (108424739).

3144316561 is a wasteful number, since it uses less digits than its factorization.

3144316561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108424738.

The product of its digits is 25920, while the sum is 34.

The square root of 3144316561 is about 56074.2058436854. The cubic root of 3144316561 is about 1465.0150551168.

The spelling of 3144316561 in words is "three billion, one hundred forty-four million, three hundred sixteen thousand, five hundred sixty-one".