163220235 has 8 divisors (see below), whose sum is σ = 261152400. Its totient is φ = 87050784.

The previous prime is 163220219. The next prime is 163220257. The reversal of 163220235 is 532022361.

163220235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 163220235 - 2⁴ = 163220219 is a prime.

It is a super-2 number, since 2×163220235² = 53281690226910450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5440660 + ... + 5440689.

It is an arithmetic number, because the mean of its divisors is an integer number (32644050).

Almost surely, 2^163220235 is an apocalyptic number.

163220235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163220235 is a deficient number, since it is larger than the sum of its proper divisors (97932165).

163220235 is a wasteful number, since it uses less digits than its factorization.

163220235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10881357.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 163220235 is about 12775.7674916226. The cubic root of 163220235 is about 546.5014680702.

Adding to 163220235 its reverse (532022361), we get a palindrome (695242596).

The spelling of 163220235 in words is "one hundred sixty-three million, two hundred twenty thousand, two hundred thirty-five".