115543103 has 6 divisors (see below), whose sum is σ = 125114904. Its totient is φ = 106655016.

The previous prime is 115543097. The next prime is 115543121. The reversal of 115543103 is 301345511.

It is not a de Polignac number, because 115543103 - 2¹⁰ = 115542079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115543303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341675 + ... + 342012.

It is an arithmetic number, because the mean of its divisors is an integer number (20852484).

Almost surely, 2^115543103 is an apocalyptic number.

115543103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115543103 is a deficient number, since it is larger than the sum of its proper divisors (9571801).

115543103 is an equidigital number, since it uses as much as digits as its factorization.

115543103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683713 (or 683700 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 115543103 is about 10749.0977760927. The cubic root of 115543103 is about 487.0587414580.

Adding to 115543103 its reverse (301345511), we get a palindrome (416888614).

The spelling of 115543103 in words is "one hundred fifteen million, five hundred forty-three thousand, one hundred three".