3138346705 has 8 divisors (see below), whose sum is σ = 4055709672. Its totient is φ = 2317548288.

The previous prime is 3138346699. The next prime is 3138346709. The reversal of 3138346705 is 5076438313.

It can be written as a sum of positive squares in 4 ways, for example, as 5817744 + 3132528961 = 2412^2 + 55969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3138346705 - 2⁹ = 3138346193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3138346709) 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 in 7 ways as a sum of consecutive naturals, for example, 24141064 + ... + 24141193.

It is an arithmetic number, because the mean of its divisors is an integer number (506963709).

Almost surely, 2^3138346705 is an apocalyptic number.

It is an amenable number.

3138346705 is a deficient number, since it is larger than the sum of its proper divisors (917362967).

3138346705 is a wasteful number, since it uses less digits than its factorization.

3138346705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48282275.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 3138346705 is about 56020.9488048891. The cubic root of 3138346705 is about 1464.0872997363.

The spelling of 3138346705 in words is "three billion, one hundred thirty-eight million, three hundred forty-six thousand, seven hundred five".