221845483 has 2 divisors, whose sum is σ = 221845484. Its totient is φ = 221845482.

The previous prime is 221845423. The next prime is 221845489. The reversal of 221845483 is 384548122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221845483 is a prime.

It is not a weakly prime, because it can be changed into another prime (221845489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110922741 + 110922742.

It is an arithmetic number, because the mean of its divisors is an integer number (110922742).

Almost surely, 2^221845483 is an apocalyptic number.

221845483 is a deficient number, since it is larger than the sum of its proper divisors (1).

221845483 is an equidigital number, since it uses as much as digits as its factorization.

221845483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 37.

The square root of 221845483 is about 14894.4782721652. The cubic root of 221845483 is about 605.3643803643.

The spelling of 221845483 in words is "two hundred twenty-one million, eight hundred forty-five thousand, four hundred eighty-three".