12503807 has 4 divisors (see below), whose sum is σ = 12519720. Its totient is φ = 12487896.

The previous prime is 12503797. The next prime is 12503831. The reversal of 12503807 is 70830521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70830521 = 131 ⋅540691.

It is a cyclic number.

It is not a de Polignac number, because 12503807 - 2²⁰ = 11455231 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503837) 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, 6713 + ... + 8370.

It is an arithmetic number, because the mean of its divisors is an integer number (3129930).

Almost surely, 2^12503807 is an apocalyptic number.

12503807 is a deficient number, since it is larger than the sum of its proper divisors (15913).

12503807 is an equidigital number, since it uses as much as digits as its factorization.

12503807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 12503807 is about 3536.0722560491. The cubic root of 12503807 is about 232.1029999941.

The spelling of 12503807 in words is "twelve million, five hundred three thousand, eight hundred seven".