12765503 has 4 divisors (see below), whose sum is σ = 12772680. Its totient is φ = 12758328.

The previous prime is 12765499. The next prime is 12765517. The reversal of 12765503 is 30556721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12765503 - 2² = 12765499 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 (12765803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301 + ... + 5217.

It is an arithmetic number, because the mean of its divisors is an integer number (3193170).

Almost surely, 2^12765503 is an apocalyptic number.

12765503 is a deficient number, since it is larger than the sum of its proper divisors (7177).

12765503 is an equidigital number, since it uses as much as digits as its factorization.

12765503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 12765503 is about 3572.8844089895. The cubic root of 12765503 is about 233.7110844879.

The spelling of 12765503 in words is "twelve million, seven hundred sixty-five thousand, five hundred three".