12499138 has 8 divisors (see below), whose sum is σ = 19353600. Its totient is φ = 6047940.

The previous prime is 12499127. The next prime is 12499181. The reversal of 12499138 is 83199421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12499097 and 12499106.

It is an unprimeable number.

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, 100738 + ... + 100861.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^12499138 is an apocalyptic number.

12499138 is a deficient number, since it is larger than the sum of its proper divisors (6854462).

12499138 is a wasteful number, since it uses less digits than its factorization.

12499138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201632.

The product of its digits is 15552, while the sum is 37.

The square root of 12499138 is about 3535.4119986219. The cubic root of 12499138 is about 232.0741068252.

The spelling of 12499138 in words is "twelve million, four hundred ninety-nine thousand, one hundred thirty-eight".