230221951 has 2 divisors, whose sum is σ = 230221952. Its totient is φ = 230221950.

The previous prime is 230221931. The next prime is 230221961. The reversal of 230221951 is 159122032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230221951 - 2⁵ = 230221919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230221921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115110975 + 115110976.

It is an arithmetic number, because the mean of its divisors is an integer number (115110976).

Almost surely, 2^230221951 is an apocalyptic number.

230221951 is a deficient number, since it is larger than the sum of its proper divisors (1).

230221951 is an equidigital number, since it uses as much as digits as its factorization.

230221951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 230221951 is about 15173.0666313702. The cubic root of 230221951 is about 612.8895878251.

Adding to 230221951 its reverse (159122032), we get a palindrome (389343983).

The spelling of 230221951 in words is "two hundred thirty million, two hundred twenty-one thousand, nine hundred fifty-one".