12509103 has 8 divisors (see below), whose sum is σ = 16729648. Its totient is φ = 8313984.

The previous prime is 12509099. The next prime is 12509117. The reversal of 12509103 is 30190521.

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

It is not a de Polignac number, because 12509103 - 2² = 12509099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12509103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12509143) 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 in 7 ways as a sum of consecutive naturals, for example, 5176 + ... + 7197.

It is an arithmetic number, because the mean of its divisors is an integer number (2091206).

Almost surely, 2^12509103 is an apocalyptic number.

12509103 is a deficient number, since it is larger than the sum of its proper divisors (4220545).

12509103 is a wasteful number, since it uses less digits than its factorization.

12509103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 12509103 is about 3536.8210302474. The cubic root of 12509103 is about 232.1357645215.

Adding to 12509103 its reverse (30190521), we get a palindrome (42699624).

The spelling of 12509103 in words is "twelve million, five hundred nine thousand, one hundred three".