3181074145 has 32 divisors (see below), whose sum is σ = 4188487680. Its totient is φ = 2310275520.

The previous prime is 3181074139. The next prime is 3181074161. The reversal of 3181074145 is 5414701813.

It is not a de Polignac number, because 3181074145 - 2⁹ = 3181073633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3181074145.

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 31 ways as a sum of consecutive naturals, for example, 298092 + ... + 308578.

It is an arithmetic number, because the mean of its divisors is an integer number (130890240).

Almost surely, 2^3181074145 is an apocalyptic number.

It is an amenable number.

3181074145 is a deficient number, since it is larger than the sum of its proper divisors (1007413535).

3181074145 is a wasteful number, since it uses less digits than its factorization.

3181074145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 3181074145 is about 56401.0119146811. The cubic root of 3181074145 is about 1470.7017096559.

Adding to 3181074145 its reverse (5414701813), we get a palindrome (8595775958).

The spelling of 3181074145 in words is "three billion, one hundred eighty-one million, seventy-four thousand, one hundred forty-five".