384943133 has 2 divisors, whose sum is σ = 384943134. Its totient is φ = 384943132.

The previous prime is 384943061. The next prime is 384943147. The reversal of 384943133 is 331349483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366607609 + 18335524 = 19147^2 + 4282^2 .

It is a cyclic number.

It is not a de Polignac number, because 384943133 - 2²⁰ = 383894557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384943193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192471566 + 192471567.

It is an arithmetic number, because the mean of its divisors is an integer number (192471567).

Almost surely, 2^384943133 is an apocalyptic number.

It is an amenable number.

384943133 is a deficient number, since it is larger than the sum of its proper divisors (1).

384943133 is an equidigital number, since it uses as much as digits as its factorization.

384943133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 38.

The square root of 384943133 is about 19619.9677114923. The cubic root of 384943133 is about 727.4428153427.

The spelling of 384943133 in words is "three hundred eighty-four million, nine hundred forty-three thousand, one hundred thirty-three".