163223144 has 32 divisors (see below), whose sum is σ = 350342400. Its totient is φ = 69837120.

The previous prime is 163223143. The next prime is 163223197. The reversal of 163223144 is 441322361.

163223144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (163223143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37649 + ... + 41759.

It is an arithmetic number, because the mean of its divisors is an integer number (10948200).

Almost surely, 2^163223144 is an apocalyptic number.

163223144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163223144 is an abundant number, since it is smaller than the sum of its proper divisors (187119256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163223144 is a wasteful number, since it uses less digits than its factorization.

163223144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833 (or 4829 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 163223144 is about 12775.8813394615. The cubic root of 163223144 is about 546.5047147333.

The spelling of 163223144 in words is "one hundred sixty-three million, two hundred twenty-three thousand, one hundred forty-four".