3181734685 has 16 divisors (see below), whose sum is σ = 3975339312. Its totient is φ = 2442585600.

The previous prime is 3181734679. The next prime is 3181734761. The reversal of 3181734685 is 5864371813.

It can be written as a sum of positive squares in 8 ways, for example, as 1996034329 + 1185700356 = 44677^2 + 34434^2 .

It is not a de Polignac number, because 3181734685 - 2¹¹ = 3181732637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 114714 + ... + 139723.

It is an arithmetic number, because the mean of its divisors is an integer number (248458707).

Almost surely, 2^3181734685 is an apocalyptic number.

It is an amenable number.

3181734685 is a deficient number, since it is larger than the sum of its proper divisors (793604627).

3181734685 is a wasteful number, since it uses less digits than its factorization.

3181734685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254544.

The product of its digits is 483840, while the sum is 46.

The square root of 3181734685 is about 56406.8673567324. The cubic root of 3181734685 is about 1470.8034981326.

The spelling of 3181734685 in words is "three billion, one hundred eighty-one million, seven hundred thirty-four thousand, six hundred eighty-five".