3138332161 has 2 divisors, whose sum is σ = 3138332162. Its totient is φ = 3138332160.

The previous prime is 3138332147. The next prime is 3138332191. The reversal of 3138332161 is 1612338313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3075367936 + 62964225 = 55456^2 + 7935^2 .

It is a cyclic number.

It is not a de Polignac number, because 3138332161 - 2⁹ = 3138331649 is a prime.

It is not a weakly prime, because it can be changed into another prime (3138332191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569166080 + 1569166081.

It is an arithmetic number, because the mean of its divisors is an integer number (1569166081).

Almost surely, 2^3138332161 is an apocalyptic number.

It is an amenable number.

3138332161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3138332161 is an equidigital number, since it uses as much as digits as its factorization.

3138332161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The square root of 3138332161 is about 56020.8189961553. The cubic root of 3138332161 is about 1464.0850380658.

The spelling of 3138332161 in words is "three billion, one hundred thirty-eight million, three hundred thirty-two thousand, one hundred sixty-one".