243103459 has 2 divisors, whose sum is σ = 243103460. Its totient is φ = 243103458.

The previous prime is 243103387. The next prime is 243103481. The reversal of 243103459 is 954301342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243103459 - 2⁹ = 243102947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243103459.

It is not a weakly prime, because it can be changed into another prime (243103759) 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, 121551729 + 121551730.

It is an arithmetic number, because the mean of its divisors is an integer number (121551730).

Almost surely, 2^243103459 is an apocalyptic number.

243103459 is a deficient number, since it is larger than the sum of its proper divisors (1).

243103459 is an equidigital number, since it uses as much as digits as its factorization.

243103459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 243103459 is about 15591.7753639539. The cubic root of 243103459 is about 624.1136954168.

The spelling of 243103459 in words is "two hundred forty-three million, one hundred three thousand, four hundred fifty-nine".