3138716852 has 12 divisors (see below), whose sum is σ = 5495518980. Its totient is φ = 1568568576.

The previous prime is 3138716831. The next prime is 3138716863. The reversal of 3138716852 is 2586178313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1577360656 + 1561356196 = 39716^2 + 39514^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188477 + ... + 204452.

It is an arithmetic number, because the mean of its divisors is an integer number (457959915).

Almost surely, 2^3138716852 is an apocalyptic number.

It is an amenable number.

3138716852 is a deficient number, since it is larger than the sum of its proper divisors (2356802128).

3138716852 is a wasteful number, since it uses less digits than its factorization.

3138716852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394930 (or 394928 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 3138716852 is about 56024.2523555647. The cubic root of 3138716852 is about 1464.1448572412.

The spelling of 3138716852 in words is "three billion, one hundred thirty-eight million, seven hundred sixteen thousand, eight hundred fifty-two".