220295161 has 4 divisors (see below), whose sum is σ = 220594000. Its totient is φ = 219996324.

The previous prime is 220295137. The next prime is 220295191. The reversal of 220295161 is 161592022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220295161 - 2¹¹ = 220293113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220295111) 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 3 ways as a sum of consecutive naturals, for example, 148311 + ... + 149788.

It is an arithmetic number, because the mean of its divisors is an integer number (55148500).

Almost surely, 2^220295161 is an apocalyptic number.

It is an amenable number.

220295161 is a deficient number, since it is larger than the sum of its proper divisors (298839).

220295161 is an equidigital number, since it uses as much as digits as its factorization.

220295161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298838.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 220295161 is about 14842.3435144185. The cubic root of 220295161 is about 603.9509274416.

The spelling of 220295161 in words is "two hundred twenty million, two hundred ninety-five thousand, one hundred sixty-one".