3138161908 has 24 divisors (see below), whose sum is σ = 6277824000. Its totient is φ = 1344605088.

The previous prime is 3138161839. The next prime is 3138161909. The reversal of 3138161908 is 8091618313.

3138161908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138161909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134493 + ... + 156091.

It is an arithmetic number, because the mean of its divisors is an integer number (261576000).

Almost surely, 2^3138161908 is an apocalyptic number.

It is an amenable number.

3138161908 is an abundant number, since it is smaller than the sum of its proper divisors (3139662092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3138161908 is a wasteful number, since it uses less digits than its factorization.

3138161908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26799 (or 26797 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 3138161908 is about 56019.2994243948. The cubic root of 3138161908 is about 1464.0585622856.

The spelling of 3138161908 in words is "three billion, one hundred thirty-eight million, one hundred sixty-one thousand, nine hundred eight".