223105161 has 16 divisors (see below), whose sum is σ = 315750528. Its totient is φ = 139641600.

The previous prime is 223105159. The next prime is 223105177. The reversal of 223105161 is 161501322.

It is not a de Polignac number, because 223105161 - 2¹ = 223105159 is a prime.

It is a super-3 number, since 3×223105161³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223105151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16276 + ... + 26666.

It is an arithmetic number, because the mean of its divisors is an integer number (19734408).

Almost surely, 2^223105161 is an apocalyptic number.

It is an amenable number.

223105161 is a deficient number, since it is larger than the sum of its proper divisors (92645367).

223105161 is a wasteful number, since it uses less digits than its factorization.

223105161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10832.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 223105161 is about 14936.7051587691. The cubic root of 223105161 is about 606.5080072897.

Adding to 223105161 its reverse (161501322), we get a palindrome (384606483).

The spelling of 223105161 in words is "two hundred twenty-three million, one hundred five thousand, one hundred sixty-one".