12537503 has 4 divisors (see below), whose sum is σ = 13677288. Its totient is φ = 11397720.

The previous prime is 12537493. The next prime is 12537523. The reversal of 12537503 is 30573521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30573521 = 11 ⋅2779411.

It is a cyclic number.

It is not a de Polignac number, because 12537503 - 2²² = 8343199 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 (12537523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569876 + ... + 569897.

It is an arithmetic number, because the mean of its divisors is an integer number (3419322).

Almost surely, 2^12537503 is an apocalyptic number.

12537503 is a deficient number, since it is larger than the sum of its proper divisors (1139785).

12537503 is a wasteful number, since it uses less digits than its factorization.

12537503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139784.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 12537503 is about 3540.8336589001. The cubic root of 12537503 is about 232.3113079582.

The spelling of 12537503 in words is "twelve million, five hundred thirty-seven thousand, five hundred three".