220171143 has 8 divisors (see below), whose sum is σ = 298374256. Its totient is φ = 144374400.

The previous prime is 220171117. The next prime is 220171151. The reversal of 220171143 is 341171022.

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

It is not a de Polignac number, because 220171143 - 2⁶ = 220171079 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 (220171163) 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, 601378 + ... + 601743.

It is an arithmetic number, because the mean of its divisors is an integer number (37296782).

Almost surely, 2^220171143 is an apocalyptic number.

220171143 is a deficient number, since it is larger than the sum of its proper divisors (78203113).

220171143 is a wasteful number, since it uses less digits than its factorization.

220171143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203185.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 220171143 is about 14838.1650819769. The cubic root of 220171143 is about 603.8375721813.

The spelling of 220171143 in words is "two hundred twenty million, one hundred seventy-one thousand, one hundred forty-three".