10115603 has 4 divisors (see below), whose sum is σ = 10128888. Its totient is φ = 10102320.

The previous prime is 10115597. The next prime is 10115639. The reversal of 10115603 is 30651101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10115603 - 2⁴ = 10115587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10115003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5426 + ... + 7047.

It is an arithmetic number, because the mean of its divisors is an integer number (2532222).

Almost surely, 2^10115603 is an apocalyptic number.

10115603 is a deficient number, since it is larger than the sum of its proper divisors (13285).

10115603 is an equidigital number, since it uses as much as digits as its factorization.

10115603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13284.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 10115603 is about 3180.5035764797. The cubic root of 10115603 is about 216.2704873280.

Adding to 10115603 its reverse (30651101), we get a palindrome (40766704).

The spelling of 10115603 in words is "ten million, one hundred fifteen thousand, six hundred three".