163280063 has 4 divisors (see below), whose sum is σ = 168910440. Its totient is φ = 157649688.

The previous prime is 163280057. The next prime is 163280071. The reversal of 163280063 is 360082361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163280063 - 2¹² = 163275967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 5630347 = 163280063 / (1 + 6 + 3 + 2 + 8 + 0 + 0 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163280093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815145 + ... + 2815202.

It is an arithmetic number, because the mean of its divisors is an integer number (42227610).

Almost surely, 2^163280063 is an apocalyptic number.

163280063 is a deficient number, since it is larger than the sum of its proper divisors (5630377).

163280063 is an equidigital number, since it uses as much as digits as its factorization.

163280063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630376.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 163280063 is about 12778.1087411244. The cubic root of 163280063 is about 546.5682328635.

The spelling of 163280063 in words is "one hundred sixty-three million, two hundred eighty thousand, sixty-three".