3138161889 has 4 divisors (see below), whose sum is σ = 4184215856. Its totient is φ = 2092107924.

The previous prime is 3138161839. The next prime is 3138161909. The reversal of 3138161889 is 9881618313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3138161889 - 2¹¹ = 3138159841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3138161839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523026979 + ... + 523026984.

It is an arithmetic number, because the mean of its divisors is an integer number (1046053964).

Almost surely, 2^3138161889 is an apocalyptic number.

It is an amenable number.

3138161889 is a deficient number, since it is larger than the sum of its proper divisors (1046053967).

3138161889 is a wasteful number, since it uses less digits than its factorization.

3138161889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046053966.

The product of its digits is 248832, while the sum is 48.

The square root of 3138161889 is about 56019.2992548104. The cubic root of 3138161889 is about 1464.0585593309.

The spelling of 3138161889 in words is "three billion, one hundred thirty-eight million, one hundred sixty-one thousand, eight hundred eighty-nine".