382821133 has 2 divisors, whose sum is σ = 382821134. Its totient is φ = 382821132.

The previous prime is 382821121. The next prime is 382821161. The reversal of 382821133 is 331128283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374306409 + 8514724 = 19347^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 382821133 - 2⁹ = 382820621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 382821095 and 382821104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382821833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191410566 + 191410567.

It is an arithmetic number, because the mean of its divisors is an integer number (191410567).

Almost surely, 2^382821133 is an apocalyptic number.

It is an amenable number.

382821133 is a deficient number, since it is larger than the sum of its proper divisors (1).

382821133 is an equidigital number, since it uses as much as digits as its factorization.

382821133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 382821133 is about 19565.8154187348. The cubic root of 382821133 is about 726.1036748582.

The spelling of 382821133 in words is "three hundred eighty-two million, eight hundred twenty-one thousand, one hundred thirty-three".