12137503 has 4 divisors (see below), whose sum is σ = 13871440. Its totient is φ = 10403568.

The previous prime is 12137497. The next prime is 12137509. The reversal of 12137503 is 30573121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30573121 = 151 ⋅202471.

It is an interprime number because it is at equal distance from previous prime (12137497) and next prime (12137509).

It is not a de Polignac number, because 12137503 - 2⁵ = 12137471 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 (12137509) 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, 866958 + ... + 866971.

It is an arithmetic number, because the mean of its divisors is an integer number (3467860).

Almost surely, 2^12137503 is an apocalyptic number.

12137503 is a deficient number, since it is larger than the sum of its proper divisors (1733937).

12137503 is an equidigital number, since it uses as much as digits as its factorization.

12137503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733936.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 12137503 is about 3483.8919328820. The cubic root of 12137503 is about 229.8139831813.

The spelling of 12137503 in words is "twelve million, one hundred thirty-seven thousand, five hundred three".