3138332181 has 8 divisors (see below), whose sum is σ = 4187719680. Its totient is φ = 2090583072.

The previous prime is 3138332161. The next prime is 3138332191. The reversal of 3138332181 is 1812338313.

3138332181 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3138332181 - 2¹³ = 3138323989 is a prime.

It is a super-2 number, since 2×3138332181² = 19698257756600433522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138332161) 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, 405120 + ... + 412793.

It is an arithmetic number, because the mean of its divisors is an integer number (523464960).

Almost surely, 2^3138332181 is an apocalyptic number.

It is an amenable number.

3138332181 is a deficient number, since it is larger than the sum of its proper divisors (1049387499).

3138332181 is a wasteful number, since it uses less digits than its factorization.

3138332181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819195.

The product of its digits is 10368, while the sum is 33.

The square root of 3138332181 is about 56020.8191746604. The cubic root of 3138332181 is about 1464.0850411759.

The spelling of 3138332181 in words is "three billion, one hundred thirty-eight million, three hundred thirty-two thousand, one hundred eighty-one".