163782433 has 2 divisors, whose sum is σ = 163782434. Its totient is φ = 163782432.

The previous prime is 163782427. The next prime is 163782473. The reversal of 163782433 is 334287361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161493264 + 2289169 = 12708^2 + 1513^2 .

It is an emirp because it is prime and its reverse (334287361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163782433 - 2¹³ = 163774241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163782392 and 163782401.

It is not a weakly prime, because it can be changed into another prime (163782473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81891216 + 81891217.

It is an arithmetic number, because the mean of its divisors is an integer number (81891217).

Almost surely, 2^163782433 is an apocalyptic number.

It is an amenable number.

163782433 is a deficient number, since it is larger than the sum of its proper divisors (1).

163782433 is an equidigital number, since it uses as much as digits as its factorization.

163782433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 163782433 is about 12797.7510915004. The cubic root of 163782433 is about 547.1282080689.

The spelling of 163782433 in words is "one hundred sixty-three million, seven hundred eighty-two thousand, four hundred thirty-three".