12499546 has 4 divisors (see below), whose sum is σ = 18749322. Its totient is φ = 6249772.

The previous prime is 12499537. The next prime is 12499561. The reversal of 12499546 is 64599421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7924225 + 4575321 = 2815^2 + 2139^2 .

It is a super-2 number, since 2×12499546² = 312477300412232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12499499 and 12499508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3124885 + ... + 3124888.

Almost surely, 2^12499546 is an apocalyptic number.

12499546 is a deficient number, since it is larger than the sum of its proper divisors (6249776).

12499546 is an equidigital number, since it uses as much as digits as its factorization.

12499546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6249775.

The product of its digits is 77760, while the sum is 40.

The square root of 12499546 is about 3535.4697000540. The cubic root of 12499546 is about 232.0766319382.

The spelling of 12499546 in words is "twelve million, four hundred ninety-nine thousand, five hundred forty-six".