230252021 has 2 divisors, whose sum is σ = 230252022. Its totient is φ = 230252020.

The previous prime is 230252017. The next prime is 230252047. The reversal of 230252021 is 120252032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146071396 + 84180625 = 12086^2 + 9175^2 .

It is a cyclic number.

It is not a de Polignac number, because 230252021 - 2² = 230252017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230252081) 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 as a sum of consecutive naturals, namely, 115126010 + 115126011.

It is an arithmetic number, because the mean of its divisors is an integer number (115126011).

Almost surely, 2^230252021 is an apocalyptic number.

It is an amenable number.

230252021 is a deficient number, since it is larger than the sum of its proper divisors (1).

230252021 is an equidigital number, since it uses as much as digits as its factorization.

230252021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 230252021 is about 15174.0574995615. The cubic root of 230252021 is about 612.9162704641.

The spelling of 230252021 in words is "two hundred thirty million, two hundred fifty-two thousand, twenty-one".