220894573 has 2 divisors, whose sum is σ = 220894574. Its totient is φ = 220894572.

The previous prime is 220894571. The next prime is 220894621. The reversal of 220894573 is 375498022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118439689 + 102454884 = 10883^2 + 10122^2 .

It is a cyclic number.

It is not a de Polignac number, because 220894573 - 2¹ = 220894571 is a prime.

Together with 220894571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220894571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110447286 + 110447287.

It is an arithmetic number, because the mean of its divisors is an integer number (110447287).

Almost surely, 2^220894573 is an apocalyptic number.

It is an amenable number.

220894573 is a deficient number, since it is larger than the sum of its proper divisors (1).

220894573 is an equidigital number, since it uses as much as digits as its factorization.

220894573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 220894573 is about 14862.5224305970. The cubic root of 220894573 is about 604.4982046873.

It can be divided in two parts, 22089 and 4573, that added together give a palindrome (26662).

The spelling of 220894573 in words is "two hundred twenty million, eight hundred ninety-four thousand, five hundred seventy-three".