230221563 has 32 divisors (see below), whose sum is σ = 365245440. Its totient is φ = 127146240.

The previous prime is 230221507. The next prime is 230221577. The reversal of 230221563 is 365122032.

It is not a de Polignac number, because 230221563 - 2⁹ = 230221051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230221163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30495 + ... + 37287.

It is an arithmetic number, because the mean of its divisors is an integer number (11413920).

Almost surely, 2^230221563 is an apocalyptic number.

230221563 is a deficient number, since it is larger than the sum of its proper divisors (135023877).

230221563 is a wasteful number, since it uses less digits than its factorization.

230221563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 230221563 is about 15173.0538455513. The cubic root of 230221563 is about 612.8892435178.

Adding to 230221563 its reverse (365122032), we get a palindrome (595343595).

The spelling of 230221563 in words is "two hundred thirty million, two hundred twenty-one thousand, five hundred sixty-three".