163233313 has 4 divisors (see below), whose sum is σ = 171824560. Its totient is φ = 154642068.

The previous prime is 163233251. The next prime is 163233319. The reversal of 163233313 is 313332361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313332361 = 3271 ⋅95791.

It is a cyclic number.

It is not a de Polignac number, because 163233313 - 2⁹ = 163232801 is a prime.

It is a super-2 number, since 2×163233313² = 53290228945911938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163233319) 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, 4295595 + ... + 4295632.

It is an arithmetic number, because the mean of its divisors is an integer number (42956140).

Almost surely, 2^163233313 is an apocalyptic number.

It is an amenable number.

163233313 is a deficient number, since it is larger than the sum of its proper divisors (8591247).

163233313 is an equidigital number, since it uses as much as digits as its factorization.

163233313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591246.

The product of its digits is 2916, while the sum is 25.

The square root of 163233313 is about 12776.2793097208. The cubic root of 163233313 is about 546.5160638000.

Adding to 163233313 its reverse (313332361), we get a palindrome (476565674).

The spelling of 163233313 in words is "one hundred sixty-three million, two hundred thirty-three thousand, three hundred thirteen".