3143836813 has 6 divisors (see below), whose sum is σ = 3385888142. Its totient is φ = 2901816600.

The previous prime is 3143836807. The next prime is 3143836823. The reversal of 3143836813 is 3186383413.

3143836813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2176502409 + 967334404 = 46653^2 + 31102^2 .

It is not a de Polignac number, because 3143836813 - 2⁹ = 3143836301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143836823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194388 + ... + 209938.

Almost surely, 2^3143836813 is an apocalyptic number.

It is an amenable number.

3143836813 is a deficient number, since it is larger than the sum of its proper divisors (242051329).

3143836813 is an frugal number, since it uses more digits than its factorization.

3143836813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31115 (or 15564 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 3143836813 is about 56069.9278847405. The cubic root of 3143836813 is about 1464.9405424972.

The spelling of 3143836813 in words is "three billion, one hundred forty-three million, eight hundred thirty-six thousand, eight hundred thirteen".