220545143 has 16 divisors (see below), whose sum is σ = 271789056. Its totient is φ = 174273120.

The previous prime is 220545139. The next prime is 220545161. The reversal of 220545143 is 341545022.

It is a happy number.

It is not a de Polignac number, because 220545143 - 2² = 220545139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220545113) 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 15 ways as a sum of consecutive naturals, for example, 138530 + ... + 140112.

It is an arithmetic number, because the mean of its divisors is an integer number (16986816).

Almost surely, 2^220545143 is an apocalyptic number.

220545143 is a deficient number, since it is larger than the sum of its proper divisors (51243913).

220545143 is a wasteful number, since it uses less digits than its factorization.

220545143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 220545143 is about 14850.7623710030. The cubic root of 220545143 is about 604.1792874119.

The spelling of 220545143 in words is "two hundred twenty million, five hundred forty-five thousand, one hundred forty-three".