320225181 has 8 divisors (see below), whose sum is σ = 428800320. Its totient is φ = 212566752.

The previous prime is 320225179. The next prime is 320225197. The reversal of 320225181 is 181522023.

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

It is not a de Polignac number, because 320225181 - 2¹ = 320225179 is a prime.

It is a super-2 number, since 2×320225181² = 205088333092965522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320225131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228361 + ... + 229758.

It is an arithmetic number, because the mean of its divisors is an integer number (53600040).

Almost surely, 2^320225181 is an apocalyptic number.

It is an amenable number.

320225181 is a deficient number, since it is larger than the sum of its proper divisors (108575139).

320225181 is a wasteful number, since it uses less digits than its factorization.

320225181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458355.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 320225181 is about 17894.8367134210. The cubic root of 320225181 is about 684.1507802579.

The spelling of 320225181 in words is "three hundred twenty million, two hundred twenty-five thousand, one hundred eighty-one".