243415103 has 2 divisors, whose sum is σ = 243415104. Its totient is φ = 243415102.

The previous prime is 243415097. The next prime is 243415111. The reversal of 243415103 is 301514342.

243415103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243415103 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 (243415153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121707551 + 121707552.

It is an arithmetic number, because the mean of its divisors is an integer number (121707552).

Almost surely, 2^243415103 is an apocalyptic number.

243415103 is a deficient number, since it is larger than the sum of its proper divisors (1).

243415103 is an equidigital number, since it uses as much as digits as its factorization.

243415103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 243415103 is about 15601.7660218323. The cubic root of 243415103 is about 624.3802735991.

Adding to 243415103 its reverse (301514342), we get a palindrome (544929445).

The spelling of 243415103 in words is "two hundred forty-three million, four hundred fifteen thousand, one hundred three".