12506493 has 4 divisors (see below), whose sum is σ = 16675328. Its totient is φ = 8337660.

The previous prime is 12506491. The next prime is 12506497. The reversal of 12506493 is 39460521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12506493 - 2¹ = 12506491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12506493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12506491) 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, 2084413 + ... + 2084418.

It is an arithmetic number, because the mean of its divisors is an integer number (4168832).

Almost surely, 2^12506493 is an apocalyptic number.

It is an amenable number.

12506493 is a deficient number, since it is larger than the sum of its proper divisors (4168835).

12506493 is an equidigital number, since it uses as much as digits as its factorization.

12506493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168834.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 12506493 is about 3536.4520355859. The cubic root of 12506493 is about 232.1196185067.

The spelling of 12506493 in words is "twelve million, five hundred six thousand, four hundred ninety-three".