12416503 has 4 divisors (see below), whose sum is σ = 13545288. Its totient is φ = 11287720.

The previous prime is 12416501. The next prime is 12416513. The reversal of 12416503 is 30561421.

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 12416503 - 2¹ = 12416501 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 (12416501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564376 + ... + 564397.

It is an arithmetic number, because the mean of its divisors is an integer number (3386322).

Almost surely, 2^12416503 is an apocalyptic number.

12416503 is the 1884-th centered heptagonal number.

12416503 is a deficient number, since it is larger than the sum of its proper divisors (1128785).

12416503 is a wasteful number, since it uses less digits than its factorization.

12416503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128784.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12416503 is about 3523.7058617314. The cubic root of 12416503 is about 231.5615418238.

Adding to 12416503 its reverse (30561421), we get a palindrome (42977924).

It can be divided in two parts, 1241 and 6503, that added together give a square (7744 = 88²).

The spelling of 12416503 in words is "twelve million, four hundred sixteen thousand, five hundred three".