220142543 has 2 divisors, whose sum is σ = 220142544. Its totient is φ = 220142542.

The previous prime is 220142521. The next prime is 220142551. The reversal of 220142543 is 345241022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220142543 - 2⁸ = 220142287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220142513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110071271 + 110071272.

It is an arithmetic number, because the mean of its divisors is an integer number (110071272).

Almost surely, 2^220142543 is an apocalyptic number.

220142543 is a deficient number, since it is larger than the sum of its proper divisors (1).

220142543 is an equidigital number, since it uses as much as digits as its factorization.

220142543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 220142543 is about 14837.2013196559. The cubic root of 220142543 is about 603.8114250938.

Adding to 220142543 its reverse (345241022), we get a palindrome (565383565).

It can be divided in two parts, 2201 and 42543, that added together give a palindrome (44744).

The spelling of 220142543 in words is "two hundred twenty million, one hundred forty-two thousand, five hundred forty-three".