260000243 has 2 divisors, whose sum is σ = 260000244. Its totient is φ = 260000242.

The previous prime is 260000189. The next prime is 260000269. The reversal of 260000243 is 342000062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260000243 - 2¹⁰ = 259999219 is a prime.

It is not a weakly prime, because it can be changed into another prime (260000743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130000121 + 130000122.

It is an arithmetic number, because the mean of its divisors is an integer number (130000122).

Almost surely, 2^260000243 is an apocalyptic number.

260000243 is a deficient number, since it is larger than the sum of its proper divisors (1).

260000243 is an equidigital number, since it uses as much as digits as its factorization.

260000243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 260000243 is about 16124.5230317055. The cubic root of 260000243 is about 638.2506287255.

The spelling of 260000243 in words is "two hundred sixty million, two hundred forty-three", and thus it is an aban number.