3181485609 has 24 divisors (see below), whose sum is σ = 4852047200. Its totient is φ = 2003253120.

The previous prime is 3181485539. The next prime is 3181485611. The reversal of 3181485609 is 9065841813.

3181485609 is a `hidden beast` number, since 3 + 1 + 81 + 4 + 8 + 560 + 9 = 666.

It is not a de Polignac number, because 3181485609 - 2⁷ = 3181485481 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3181485679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28497 + ... + 84705.

Almost surely, 2^3181485609 is an apocalyptic number.

It is an amenable number.

3181485609 is a deficient number, since it is larger than the sum of its proper divisors (1670561591).

3181485609 is a wasteful number, since it uses less digits than its factorization.

3181485609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56565 (or 56562 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 3181485609 is about 56404.6594617856. The cubic root of 3181485609 is about 1470.7651174537.

The spelling of 3181485609 in words is "three billion, one hundred eighty-one million, four hundred eighty-five thousand, six hundred nine".