230209997 has 2 divisors, whose sum is σ = 230209998. Its totient is φ = 230209996.

The previous prime is 230209951. The next prime is 230210021. The reversal of 230209997 is 799902032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175138756 + 55071241 = 13234^2 + 7421^2 .

It is a cyclic number.

It is not a de Polignac number, because 230209997 - 2⁸ = 230209741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230209907) 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, 115104998 + 115104999.

It is an arithmetic number, because the mean of its divisors is an integer number (115104999).

Almost surely, 2^230209997 is an apocalyptic number.

It is an amenable number.

230209997 is a deficient number, since it is larger than the sum of its proper divisors (1).

230209997 is an equidigital number, since it uses as much as digits as its factorization.

230209997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 230209997 is about 15172.6727045699. The cubic root of 230209997 is about 612.8789797881.

The spelling of 230209997 in words is "two hundred thirty million, two hundred nine thousand, nine hundred ninety-seven".