3161887013 has 4 divisors (see below), whose sum is σ = 3189868428. Its totient is φ = 3133905600.

The previous prime is 3161887007. The next prime is 3161887021. The reversal of 3161887013 is 3107881613.

3161887013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3107881613 = 50923 ⋅61031.

It can be written as a sum of positive squares in 2 ways, for example, as 343657444 + 2818229569 = 18538^2 + 53087^2 .

It is a cyclic number.

It is not a de Polignac number, because 3161887013 - 2⁴ = 3161886997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161887513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13990538 + ... + 13990763.

It is an arithmetic number, because the mean of its divisors is an integer number (797467107).

Almost surely, 2^3161887013 is an apocalyptic number.

It is an amenable number.

3161887013 is a deficient number, since it is larger than the sum of its proper divisors (27981415).

3161887013 is a wasteful number, since it uses less digits than its factorization.

3161887013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27981414.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 3161887013 is about 56230.6590126774. The cubic root of 3161887013 is about 1467.7388243486.

The spelling of 3161887013 in words is "three billion, one hundred sixty-one million, eight hundred eighty-seven thousand, thirteen".