12399126 has 8 divisors (see below), whose sum is σ = 24798264. Its totient is φ = 4133040.

The previous prime is 12399119. The next prime is 12399143. The reversal of 12399126 is 62199321.

12399126 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

12399126 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033255 + ... + 1033266.

It is an arithmetic number, because the mean of its divisors is an integer number (3099783).

Almost surely, 2^12399126 is an apocalyptic number.

12399126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12399126 is a wasteful number, since it uses less digits than its factorization.

12399126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066526.

The product of its digits is 5832, while the sum is 33.

The square root of 12399126 is about 3521.2392704842. The cubic root of 12399126 is about 231.4534672849.

The spelling of 12399126 in words is "twelve million, three hundred ninety-nine thousand, one hundred twenty-six".