243169007 has 2 divisors, whose sum is σ = 243169008. Its totient is φ = 243169006.

The previous prime is 243168941. The next prime is 243169039. The reversal of 243169007 is 700961342.

It is an a-pointer prime, because the next prime (243169039) can be obtained adding 243169007 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243169007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243169057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121584503 + 121584504.

It is an arithmetic number, because the mean of its divisors is an integer number (121584504).

Almost surely, 2^243169007 is an apocalyptic number.

243169007 is a deficient number, since it is larger than the sum of its proper divisors (1).

243169007 is an equidigital number, since it uses as much as digits as its factorization.

243169007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 243169007 is about 15593.8772279379. The cubic root of 243169007 is about 624.1697836469.

The spelling of 243169007 in words is "two hundred forty-three million, one hundred sixty-nine thousand, seven".