163227643 has 4 divisors (see below), whose sum is σ = 165903568. Its totient is φ = 160551720.

The previous prime is 163227599. The next prime is 163227661. The reversal of 163227643 is 346722361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346722361 = 17 ⋅20395433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163227643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163227599 and 163227608.

It is not an unprimeable number, because it can be changed into a prime (163227443) 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, 1337871 + ... + 1337992.

It is an arithmetic number, because the mean of its divisors is an integer number (41475892).

Almost surely, 2^163227643 is an apocalyptic number.

163227643 is a deficient number, since it is larger than the sum of its proper divisors (2675925).

163227643 is an equidigital number, since it uses as much as digits as its factorization.

163227643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675924.

The product of its digits is 36288, while the sum is 34.

The square root of 163227643 is about 12776.0574122066. The cubic root of 163227643 is about 546.5097358801.

The spelling of 163227643 in words is "one hundred sixty-three million, two hundred twenty-seven thousand, six hundred forty-three".