3138505885 has 8 divisors (see below), whose sum is σ = 3830041440. Its totient is φ = 2468248464.

The previous prime is 3138505883. The next prime is 3138505897. The reversal of 3138505885 is 5885058313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3138505885 - 2¹ = 3138505883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138505883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5319207 + ... + 5319796.

It is an arithmetic number, because the mean of its divisors is an integer number (478755180).

Almost surely, 2^3138505885 is an apocalyptic number.

It is an amenable number.

3138505885 is a deficient number, since it is larger than the sum of its proper divisors (691535555).

3138505885 is a wasteful number, since it uses less digits than its factorization.

3138505885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10639067.

The product of its (nonzero) digits is 576000, while the sum is 46.

The square root of 3138505885 is about 56022.3695054038. The cubic root of 3138505885 is about 1464.1120526288.

The spelling of 3138505885 in words is "three billion, one hundred thirty-eight million, five hundred five thousand, eight hundred eighty-five".