331161133 has 2 divisors, whose sum is σ = 331161134. Its totient is φ = 331161132.

The previous prime is 331161113. The next prime is 331161143.

331161133 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167883849 + 163277284 = 12957^2 + 12778^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331161133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331161113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165580566 + 165580567.

It is an arithmetic number, because the mean of its divisors is an integer number (165580567).

Almost surely, 2^331161133 is an apocalyptic number.

It is an amenable number.

331161133 is a deficient number, since it is larger than the sum of its proper divisors (1).

331161133 is an equidigital number, since it uses as much as digits as its factorization.

331161133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 22.

The square root of 331161133 is about 18197.8331951911. The cubic root of 331161133 is about 691.8518712699.

The spelling of 331161133 in words is "three hundred thirty-one million, one hundred sixty-one thousand, one hundred thirty-three".