163033223 has 4 divisors (see below), whose sum is σ = 170121648. Its totient is φ = 155944800.

The previous prime is 163033147. The next prime is 163033229. The reversal of 163033223 is 322330361.

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 163033223 - 2¹² = 163029127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 7088401 = 163033223 / (1 + 6 + 3 + 0 + 3 + 3 + 2 + 2 + 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 (163033229) 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, 3544178 + ... + 3544223.

It is an arithmetic number, because the mean of its divisors is an integer number (42530412).

Almost surely, 2^163033223 is an apocalyptic number.

163033223 is a deficient number, since it is larger than the sum of its proper divisors (7088425).

163033223 is an equidigital number, since it uses as much as digits as its factorization.

163033223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088424.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 163033223 is about 12768.4463816081. The cubic root of 163033223 is about 546.2926675893.

Adding to 163033223 its reverse (322330361), we get a palindrome (485363584).

The spelling of 163033223 in words is "one hundred sixty-three million, thirty-three thousand, two hundred twenty-three".