243232207 has 2 divisors, whose sum is σ = 243232208. Its totient is φ = 243232206.

The previous prime is 243232183. The next prime is 243232217. The reversal of 243232207 is 702232342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243232207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243232217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121616103 + 121616104.

It is an arithmetic number, because the mean of its divisors is an integer number (121616104).

Almost surely, 2^243232207 is an apocalyptic number.

243232207 is a deficient number, since it is larger than the sum of its proper divisors (1).

243232207 is an equidigital number, since it uses as much as digits as its factorization.

243232207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 243232207 is about 15595.9035326588. The cubic root of 243232207 is about 624.2238531928.

Adding to 243232207 its reverse (702232342), we get a palindrome (945464549).

The spelling of 243232207 in words is "two hundred forty-three million, two hundred thirty-two thousand, two hundred seven".