163220234 has 8 divisors (see below), whose sum is σ = 245628768. Its totient is φ = 81343980.

The previous prime is 163220219. The next prime is 163220257. The reversal of 163220234 is 432022361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132302 + ... + 133529.

It is an arithmetic number, because the mean of its divisors is an integer number (30703596).

Almost surely, 2^163220234 is an apocalyptic number.

163220234 is a deficient number, since it is larger than the sum of its proper divisors (82408534).

163220234 is a wasteful number, since it uses less digits than its factorization.

163220234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266140.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 163220234 is about 12775.7674524860. The cubic root of 163220234 is about 546.5014669541.

Adding to 163220234 its reverse (432022361), we get a palindrome (595242595).

The spelling of 163220234 in words is "one hundred sixty-three million, two hundred twenty thousand, two hundred thirty-four".