163782272 has 16 divisors (see below), whose sum is σ = 326285250. Its totient is φ = 81891072.

The previous prime is 163782271. The next prime is 163782277. The reversal of 163782272 is 272287361.

It can be written as a sum of positive squares in only one way, i.e., 98883136 + 64899136 = 9944^2 + 8056^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (163782271) 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, 639647 + ... + 639902.

Almost surely, 2^163782272 is an apocalyptic number.

It is an amenable number.

163782272 is a deficient number, since it is larger than the sum of its proper divisors (162502978).

163782272 is an equidigital number, since it uses as much as digits as its factorization.

163782272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279563 (or 1279551 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 163782272 is about 12797.7448013312. The cubic root of 163782272 is about 547.1280287911.

The spelling of 163782272 in words is "one hundred sixty-three million, seven hundred eighty-two thousand, two hundred seventy-two".