115663503 has 8 divisors (see below), whose sum is σ = 156746416. Its totient is φ = 75844800.

The previous prime is 115663489. The next prime is 115663531. The reversal of 115663503 is 305366511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115663503 - 2⁴ = 115663487 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 (115663403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315838 + ... + 316203.

It is an arithmetic number, because the mean of its divisors is an integer number (19593302).

Almost surely, 2^115663503 is an apocalyptic number.

115663503 is a deficient number, since it is larger than the sum of its proper divisors (41082913).

115663503 is an equidigital number, since it uses as much as digits as its factorization.

115663503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632105.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 115663503 is about 10754.6967879155. The cubic root of 115663503 is about 487.2278602075.

The spelling of 115663503 in words is "one hundred fifteen million, six hundred sixty-three thousand, five hundred three".