220550143 has 4 divisors (see below), whose sum is σ = 240600168. Its totient is φ = 200500120.

The previous prime is 220550117. The next prime is 220550153. The reversal of 220550143 is 341055022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220550143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220550153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10024996 + ... + 10025017.

It is an arithmetic number, because the mean of its divisors is an integer number (60150042).

Almost surely, 2^220550143 is an apocalyptic number.

220550143 is a deficient number, since it is larger than the sum of its proper divisors (20050025).

220550143 is a wasteful number, since it uses less digits than its factorization.

220550143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20050024.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 220550143 is about 14850.9307115749. The cubic root of 220550143 is about 604.1838531795.

The spelling of 220550143 in words is "two hundred twenty million, five hundred fifty thousand, one hundred forty-three".