220144 has 10 divisors (see below), whose sum is σ = 426560. Its totient is φ = 110064.

The previous prime is 220141. The next prime is 220147. The reversal of 220144 is 441022.

It is an interprime number because it is at equal distance from previous prime (220141) and next prime (220147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220141) 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 as a sum of consecutive naturals, namely, 6864 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (42656).

2²²⁰¹⁴⁴ is an apocalyptic number.

It is an amenable number.

220144 is a deficient number, since it is larger than the sum of its proper divisors (206416).

220144 is a wasteful number, since it uses less digits than its factorization.

220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13767 (or 13761 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 220144 is about 469.1950553874. The cubic root of 220144 is about 60.3812757187.

Adding to 220144 its reverse (441022), we get a palindrome (661166).

The spelling of 220144 in words is "two hundred twenty thousand, one hundred forty-four", and thus it is an iban number.