220144243 has 8 divisors (see below), whose sum is σ = 241597440. Its totient is φ = 198931080.

The previous prime is 220144231. The next prime is 220144283. The reversal of 220144243 is 342441022.

It is a happy number.

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 220144243 - 2²¹ = 218047091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220144283) 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, 58083 + ... + 61756.

It is an arithmetic number, because the mean of its divisors is an integer number (30199680).

Almost surely, 2^220144243 is an apocalyptic number.

220144243 is a deficient number, since it is larger than the sum of its proper divisors (21453197).

220144243 is a wasteful number, since it uses less digits than its factorization.

220144243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120017.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 220144243 is about 14837.2586079774. The cubic root of 220144243 is about 603.8129793546.

Adding to 220144243 its reverse (342441022), we get a palindrome (562585265).

The spelling of 220144243 in words is "two hundred twenty million, one hundred forty-four thousand, two hundred forty-three".