3138161896 has 8 divisors (see below), whose sum is σ = 5884053570. Its totient is φ = 1569080944.

The previous prime is 3138161839. The next prime is 3138161909. The reversal of 3138161896 is 6981618313.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3001505796 + 136656100 = 54786^2 + 11690^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196135111 + ... + 196135126.

Almost surely, 2^3138161896 is an apocalyptic number.

It is an amenable number.

3138161896 is a deficient number, since it is larger than the sum of its proper divisors (2745891674).

3138161896 is a wasteful number, since it uses less digits than its factorization.

3138161896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392270243 (or 392270239 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 3138161896 is about 56019.2993172889. The cubic root of 3138161896 is about 1464.0585604194.

The spelling of 3138161896 in words is "three billion, one hundred thirty-eight million, one hundred sixty-one thousand, eight hundred ninety-six".