329388133 has 2 divisors, whose sum is σ = 329388134. Its totient is φ = 329388132.

The previous prime is 329388131. The next prime is 329388149. The reversal of 329388133 is 331883923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295083684 + 34304449 = 17178^2 + 5857^2 .

It is a cyclic number.

It is not a de Polignac number, because 329388133 - 2¹ = 329388131 is a prime.

It is a super-2 number, since 2×329388133² = 216993084322451378, which contains 22 as substring.

Together with 329388131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329388131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164694066 + 164694067.

It is an arithmetic number, because the mean of its divisors is an integer number (164694067).

Almost surely, 2^329388133 is an apocalyptic number.

It is an amenable number.

329388133 is a deficient number, since it is larger than the sum of its proper divisors (1).

329388133 is an equidigital number, since it uses as much as digits as its factorization.

329388133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 329388133 is about 18149.0532259950. The cubic root of 329388133 is about 690.6149618000.

The spelling of 329388133 in words is "three hundred twenty-nine million, three hundred eighty-eight thousand, one hundred thirty-three".