220747441 has 2 divisors, whose sum is σ = 220747442. Its totient is φ = 220747440.

The previous prime is 220747367. The next prime is 220747451. The reversal of 220747441 is 144747022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112275216 + 108472225 = 10596^2 + 10415^2 .

It is a cyclic number.

It is not a de Polignac number, because 220747441 - 2¹³ = 220739249 is a prime.

It is not a weakly prime, because it can be changed into another prime (220747451) 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, 110373720 + 110373721.

It is an arithmetic number, because the mean of its divisors is an integer number (110373721).

Almost surely, 2^220747441 is an apocalyptic number.

It is an amenable number.

220747441 is a deficient number, since it is larger than the sum of its proper divisors (1).

220747441 is an equidigital number, since it uses as much as digits as its factorization.

220747441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 220747441 is about 14857.5718406474. The cubic root of 220747441 is about 604.3639614855.

The spelling of 220747441 in words is "two hundred twenty million, seven hundred forty-seven thousand, four hundred forty-one".