12506473 has 4 divisors (see below), whose sum is σ = 14293120. Its totient is φ = 10719828.

The previous prime is 12506449. The next prime is 12506477. The reversal of 12506473 is 37460521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37460521 = 7 ⋅5351503.

It is not a de Polignac number, because 12506473 - 2¹⁷ = 12375401 is a prime.

It is a super-3 number, since 3×12506473³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12506477) 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, 893313 + ... + 893326.

It is an arithmetic number, because the mean of its divisors is an integer number (3573280).

Almost surely, 2^12506473 is an apocalyptic number.

It is an amenable number.

12506473 is a deficient number, since it is larger than the sum of its proper divisors (1786647).

12506473 is an equidigital number, since it uses as much as digits as its factorization.

12506473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786646.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 12506473 is about 3536.4492078920. The cubic root of 12506473 is about 232.1194947738.

Adding to 12506473 its reverse (37460521), we get a palindrome (49966994).

The spelling of 12506473 in words is "twelve million, five hundred six thousand, four hundred seventy-three".