3152840681 has 2 divisors, whose sum is σ = 3152840682. Its totient is φ = 3152840680.

The previous prime is 3152840651. The next prime is 3152840729. The reversal of 3152840681 is 1860482513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3145415056 + 7425625 = 56084^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 3152840681 - 2⁶ = 3152840617 is a prime.

It is a super-2 number, since 2×3152840681² = 19880808719537087522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3152840651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1576420340 + 1576420341.

It is an arithmetic number, because the mean of its divisors is an integer number (1576420341).

Almost surely, 2^3152840681 is an apocalyptic number.

It is an amenable number.

3152840681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3152840681 is an equidigital number, since it uses as much as digits as its factorization.

3152840681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 3152840681 is about 56150.1618964719. The cubic root of 3152840681 is about 1466.3377268919.

The spelling of 3152840681 in words is "three billion, one hundred fifty-two million, eight hundred forty thousand, six hundred eighty-one".