220723273 has 2 divisors, whose sum is σ = 220723274. Its totient is φ = 220723272.

The previous prime is 220723271. The next prime is 220723277. The reversal of 220723273 is 372327022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192876544 + 27846729 = 13888^2 + 5277^2 .

It is a cyclic number.

It is not a de Polignac number, because 220723273 - 2¹ = 220723271 is a prime.

Together with 220723271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220723271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110361636 + 110361637.

It is an arithmetic number, because the mean of its divisors is an integer number (110361637).

Almost surely, 2^220723273 is an apocalyptic number.

It is an amenable number.

220723273 is a deficient number, since it is larger than the sum of its proper divisors (1).

220723273 is an equidigital number, since it uses as much as digits as its factorization.

220723273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 220723273 is about 14856.7584957150. The cubic root of 220723273 is about 604.3419049047.

The spelling of 220723273 in words is "two hundred twenty million, seven hundred twenty-three thousand, two hundred seventy-three".