220959 has 6 divisors (see below), whose sum is σ = 319176. Its totient is φ = 147300.

The previous prime is 220939. The next prime is 220973. The reversal of 220959 is 959022.

It is not a de Polignac number, because 220959 - 2⁹ = 220447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12267 + ... + 12284.

It is an arithmetic number, because the mean of its divisors is an integer number (53196).

2²²⁰⁹⁵⁹ is an apocalyptic number.

220959 is a deficient number, since it is larger than the sum of its proper divisors (98217).

220959 is a wasteful number, since it uses less digits than its factorization.

220959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24557 (or 24554 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 220959 is about 470.0627617670. The cubic root of 220959 is about 60.4556969101.

The spelling of 220959 in words is "two hundred twenty thousand, nine hundred fifty-nine".