230221457 has 4 divisors (see below), whose sum is σ = 230606400. Its totient is φ = 229836516.

The previous prime is 230221427. The next prime is 230221477. The reversal of 230221457 is 754122032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230221457 - 2⁶ = 230221393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230221427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191573 + ... + 192770.

It is an arithmetic number, because the mean of its divisors is an integer number (57651600).

Almost surely, 2^230221457 is an apocalyptic number.

It is an amenable number.

230221457 is a deficient number, since it is larger than the sum of its proper divisors (384943).

230221457 is an equidigital number, since it uses as much as digits as its factorization.

230221457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384942.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 230221457 is about 15173.0503525165. The cubic root of 230221457 is about 612.8891494544.

Adding to 230221457 its reverse (754122032), we get a palindrome (984343489).

The spelling of 230221457 in words is "two hundred thirty million, two hundred twenty-one thousand, four hundred fifty-seven".