3133943813 has 24 divisors (see below), whose sum is σ = 4282961760. Its totient is φ = 2254180320.

The previous prime is 3133943789. The next prime is 3133943819. The reversal of 3133943813 is 3183493313.

It is a happy number.

It is not a de Polignac number, because 3133943813 - 2⁶ = 3133943749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133943819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216623 + ... + 230636.

It is an arithmetic number, because the mean of its divisors is an integer number (178456740).

Almost surely, 2^3133943813 is an apocalyptic number.

It is an amenable number.

3133943813 is a deficient number, since it is larger than the sum of its proper divisors (1149017947).

3133943813 is a wasteful number, since it uses less digits than its factorization.

3133943813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447297 (or 447290 counting only the distinct ones).

The product of its digits is 69984, while the sum is 38.

The square root of 3133943813 is about 55981.6381771738. The cubic root of 3133943813 is about 1463.4023068875.

The spelling of 3133943813 in words is "three billion, one hundred thirty-three million, nine hundred forty-three thousand, eight hundred thirteen".