220043161 has 8 divisors (see below), whose sum is σ = 249441920. Its totient is φ = 192426192.

The previous prime is 220043149. The next prime is 220043179. The reversal of 220043161 is 161340022.

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

It is a cyclic number.

It is not a de Polignac number, because 220043161 - 2⁹ = 220042649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (220043101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445185 + ... + 445678.

It is an arithmetic number, because the mean of its divisors is an integer number (31180240).

Almost surely, 2^220043161 is an apocalyptic number.

It is an amenable number.

220043161 is a deficient number, since it is larger than the sum of its proper divisors (29398759).

220043161 is a wasteful number, since it uses less digits than its factorization.

220043161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890895.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 220043161 is about 14833.8518598508. The cubic root of 220043161 is about 603.7205490966.

Adding to 220043161 its reverse (161340022), we get a palindrome (381383183).

The spelling of 220043161 in words is "two hundred twenty million, forty-three thousand, one hundred sixty-one".