220740743 has 2 divisors, whose sum is σ = 220740744. Its totient is φ = 220740742.

The previous prime is 220740719. The next prime is 220740781. The reversal of 220740743 is 347047022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220740743 - 2¹⁶ = 220675207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220740713) 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 as a sum of consecutive naturals, namely, 110370371 + 110370372.

It is an arithmetic number, because the mean of its divisors is an integer number (110370372).

Almost surely, 2^220740743 is an apocalyptic number.

220740743 is a deficient number, since it is larger than the sum of its proper divisors (1).

220740743 is an equidigital number, since it uses as much as digits as its factorization.

220740743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 220740743 is about 14857.3464319844. The cubic root of 220740743 is about 604.3578488125.

Adding to 220740743 its reverse (347047022), we get a palindrome (567787765).

The spelling of 220740743 in words is "two hundred twenty million, seven hundred forty thousand, seven hundred forty-three".