163224823 has 4 divisors (see below), whose sum is σ = 165291040. Its totient is φ = 161158608.

The previous prime is 163224799. The next prime is 163224869. The reversal of 163224823 is 328422361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328422361 = 29 ⋅11324909.

It is a cyclic number.

It is not a de Polignac number, because 163224823 - 2⁵ = 163224791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163224883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032990 + ... + 1033147.

It is an arithmetic number, because the mean of its divisors is an integer number (41322760).

Almost surely, 2^163224823 is an apocalyptic number.

163224823 is a deficient number, since it is larger than the sum of its proper divisors (2066217).

163224823 is an equidigital number, since it uses as much as digits as its factorization.

163224823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066216.

The product of its digits is 13824, while the sum is 31.

The square root of 163224823 is about 12775.9470490449. The cubic root of 163224823 is about 546.5065886062.

The spelling of 163224823 in words is "one hundred sixty-three million, two hundred twenty-four thousand, eight hundred twenty-three".